Which of coming up next is right and supports the contention that most microorganisms don't actually hurt people? Microorganisms can perform photosynthesis, and disintegration, and be utilized in food creation.
Various gatherings of microorganisms fluctuate in their defenselessness to biocides, with bacterial spores being the safest, trailed by mycobacteria, then, at that point, Gram-negative organic entities, with cocci, by and large, being the most delicate.
It has been resolved that in a shut framework or cluster culture (no food added, no squanders eliminated) microorganisms will fill in an anticipated example, bringing about a development bend made out of four unmistakable periods of development: the slack stage, the remarkable or log stage, the fixed stage, and the passing or decline stage.
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classify the following micronutrients as required or optional on the nutrition facts panel. you are currently in a sorting module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. required optional
To classify the Vitamin D, calcium, iron, and potassium micronutrients as required or optional on the nutrition facts panel. Companies can voluntarily list other vitamins and minerals in the food are the only micronutrients required to be on the food label.
Vitamins A and C nutrient is not required on a food label because manufacturers may still include them if they choose while Vitamin D and Potassium will now be required on the FDA's Nutrition Facts labels.
Micronutrients are essential dietary elements required by organisms in varying quantities throughout life maintain and functions of the health.The foods that do not require Labelling that is ready-to-eat food, products from bakeries and delis or candy store items that is not for immediate consumption but is prepared on site.
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A certain type of lens changes the direction of light rays from A to B. What property does
this illustrate?
A. refraction
B. polarization
C. diffraction
D. reflection
E. deflection
The correct option is B. polarization. A particular kind of lens known as a Polarized lens alters the path of light rays point A to point b B.
Define the term Polarized lens?In order to improve eyesight and eye safety outdoors, polarized lenses are a sort of treated lenses intended to reduce glare as well as eye strain.
Outdoor glare is lessened with polarized sunglasses because they have been chemically altered to block part light from getting through the lenses. For people who spend a lot of time outdoors, polarized prescriptive sunglasses might be a smart option because they better block out strong light that causes eye strain than normal sunglasses.Before reaching a target, light must pass through two polarizing filters, and if the filters are 90 degrees apart, the target will not get any light. Light would reach the target if a 3rd filter is inserted between the initial two, angled at a 45° angle.Thus, A particular kind of lens known as a Polarized lens alters the path of light rays point A to point b B.
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HELPPP!!! 84 POINTS!!! Constructed response: Osmosis. Jonathan is conducting an experiment using a type of bag that is permeable to distilled water, but not to the sugar water. He fils the three bags with their given solution, weighs and places hem into the different beakers. The diagram below shows the contents of the bags and hastiers at the beginning of the experiment. Predict what will happen after 20 minutes for Beaker 1, 2, and 3. Please help. Fast!
Answer:
Explanation:
After 20 minutes, in Beaker 1, the distilled water bag will gain weight due to the water from the beaker diffusing into the bag through the permeable membrane. This is because the concentration of water molecules is higher on the outside of the bag and the water will move from an area of high concentration to an area of low concentration. The sugar water bag will not change in weight because the membrane is not permeable to the sugar molecules and so they will not diffuse through the membrane.
In Beaker 2, the distilled water bag will lose weight as the water inside the bag will diffuse out of the bag and into the beaker because the concentration of water inside the bag is higher than the concentration of water outside the bag. The sugar water bag will not change in weight because the membrane is not permeable to the sugar molecules, and so they will not diffuse through the membrane.
In Beaker 3, both the distilled water and the sugar water bags will not change in weight because the concentration of water and sugar inside the bags are the same as the concentration of water and sugar outside the bags, so there will be no net movement of water or sugar through the membrane.
Columnar epithelial cells in the uterine tubes and respiratory passageways have..., which can push the egg towards the uterus
Columnar epithelial cells in the uterine tubes and respiratory passageways have cilia, which can push the egg towards the uterus.
The cilia, which are small, hair-like projections on the surface of the cells, are used to move mucus and other fluids through the tubes. In the case of the uterine tubes, the cilia help to move the egg from the ovary to the uterus, where it can potentially be fertilized. Similarly, in the respiratory passageways, the cilia help to move mucus and debris out of the lungs, keeping the airways clear.
This is an example of how the same organelles can have different functions depending on the tissue in which they are found.
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Type a summary explaining how we know that tectonic plates is the
cause of volcanoes, earthquakes, mid ocean ridges, and mountains.
Then, record your voice reading your explanation.
According to scientific theory of plate tectonics, the Earth's subterranean motions result in the formation of significant landforms.
Which scientific theory is it?Using the scientific method, a theory is a well-planned explanation for observations made about the natural world that combines numerous facts and assumptions.
Which is better, theories or hypotheses?An hypothesis is an assertion made without any supporting evidence. It is created for the purpose of being examined to determine whether it might be accurate. An explanation for something that has already been demonstrated by facts is called a theory.
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A researcher postulated: that tomato plants exhibit a higher rate of growth when planted in compost than in soil. Based on this hypothesis, which of the following statements would be the best null hypothesis?Select one:a. Tomato plants show no difference in growth rate when planted in compost rather than in soil.b. There is no difference in growth rates.c. Tomato plants exhibit a lower rate of growth when planted in compost than in soil.d. A null hypothesis cannot be obtained from the hypothesis provided.e. Tomato plants that are planted in compost rather than in soil will grow to an average height of six feet.DAfter compa
Create a hypothesis for the statement, "Tomato plants develop more quickly when planted in compost."
According to the ANOVA test, organic fertilisers considerably boosted the vegetable production in this "tomato-celery-tomato" system. This may be the case because applying organic fertiliser can boost soil organic matter, which in turn boosts yields26,27. Create a hypothesis for the statement, "Tomato plants develop more quickly when planted in compost." For tomatoes to flourish, two essential minerals must be present: phosphorus, which encourages the growth of flowers and fruit, and calcium, which guards against blossom end rotting (that dreaded black sunken hole on the flower end of your calcium-deficient tomatoes). Nitrogen is a nutrient that plants require for growth. It is anticipated that tomato plants cultivated with nitrogen fertiliser will develop more leaves, grow faster, and become taller than tomato plants planted without nitrogen fertiliser. The primary findings revealed that: (1) Compared to conventional composting methods, vermicompost or chicken manure composting more successfully stimulated crop growth, comprising stem diameter & plant height.
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Tomato plants exhibit no difference in growth rate when planted in compost rather than in soil." this is the best null hypothesis that can be derived from the supplied hypothesis. Here option A is the correct answer.
The null hypothesis is a statement of no relationship or difference between the variables being studied. It is the opposite of the research hypothesis and is often stated as "there is no difference" or "there is no relationship."
In this case, the researcher's hypothesis is that tomato plants exhibit a higher rate of growth when planted in compost than in soil, so the null hypothesis would be that there is no difference in growth rate between the two conditions (compost and soil).
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watch the video clip of cells in the small intestine. name the general location along the villus where the following processes occur: cell division: cell differentiation: apoptosis:
The general location along the villus where cell division occurs is the crypt, cell differentiation occurs ascending the villus, and apoptosis occurs at the apex of the villus.
The intestinal villi are numerous finger-like structures that project into the gut lumen and are covered by epithelial cells. The villi are well known for increasing the surface area of the gut for efficient absorption. By separating the villus tips, where cells shed, from the crypts, where cells are produced, the villi prevent epithelial cells from shedding too early or remaining in the epithelium for too long. Apoptosis is the programmed cell death which then occurs at the apex of these villi.
The villi's walls are one cell thick. This allows substances to be absorbed more quickly and easily through diffusion. Each villus is composed of a network of blood capillaries that transport glucose and amino acids into the blood. Each villus transports nutrients from the intestine to a system of capillaries and fine lymphatic vessels.
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epinephrine and norepinephrine are secreted by the adrenal glands and are both when used in the nervous system and when used in the endocrine system.
The neurotransmitter noradrenaline also reaches your adrenal gland, which releases the hormones adrenaline( epinephrine) and noradrenaline( norepinephrine).
These hormones travel through your blood to all corridors of your body. They reach your eyes, heart, airways, blood vessels in your skin and your adrenal gland again. Norepinephrine is produced in the inner part of the adrenal glands, also called the adrenal medulla. The adrenal medulla also makes adrenaline( also known as epinephrine).
Norepinephrine, adrenaline and dopamine belong to part of the catecholamine family. When a stressor begins, epinephrine and norepinephrine are released from the adrenal medulla and norepinephrine is released from the sympathetic whim-whams outstations. Because the secretory cells are neurons, catecholamine release is veritably quick, and goods can be seen in lower than an alternate.
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Epinephrine and norepinephrine are secreted by the adrenal glands and are both neurotransmitters when used in the nervous system and hormones when used in the endocrine system.
Neurotransmitters are the chemical messengers that function to relay the electrical signals inside one nerve cell to another nerve cell in the chemical form. Neurotransmitters can be excitatory as well as inhibitory in function. The examples are: glutamate, GABA, dopamine, etc.
Hormones are also the chemical messengers that are secreted from specific glands, called the endocrine glands. They are different from neurotransmitter because hormones can be diffused openly but neurotransmitters remain confined between two neurons.
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What is responsible for
returning nitrogen to the
atmosphere as nitrogen
gas?
Answer:
Denitrification. Denitrification is the process that converts nitrate to nitrogen gas, thus removing bioavailable nitrogen and returning it to the atmosphere.
Explanation:
Biology what are some of the arguments for genetic mapping
Some of the arguments for genetic mapping include the following below:
It offers evidence that a disease transmitted from parent to child is linked to one or more genes. It provides clues about which chromosome contains the gene and precisely where the gene lies on that chromosome.What is Genetic mapping?This is also called linkage mapping and it used to identify the locus of a gene and the distances between genes.
This is important because it helps to provide clue and evidence about the chromosome contains the gene and precisely where the gene lies on that chromosome responsible for various types of diseases.
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bar-headed geese migrate from their breeding grounds to their wintering grounds by flying over the highest peaks of the himalayan mountains where oxygen levels in the air are extremely low, and yet these birds can produce enough muscle power to complete the arduous journey over the tops of the mountains. match the following research questions about this amazing feat with the appropriate area of biology that could investigate each question.
the terms are: 1- Ecology and Ethology, 2-Physiology, 3- Comparative Anatomy and Physiology, 4- Comparative Genomics and Evolutionary Biology
Ecology is the study of the interactions between organisms and their environment. It deals with the distribution, abundance, and dynamics of living organisms and their interactions with each other and their physical and chemical environment.
Ethology is the study of animal behavior, including how and why animals behave the way they do. It focuses on the mechanistic and evolutionary causes of behavior, and how behavior is influenced by the animal's environment.
Physiology is the study of the functions and processes of living organisms and their parts, including the physical and chemical mechanisms that underlie them. It deals with how organisms, organ systems, organs, cells, and biomolecules carry out the chemical and physical functions that exist in a living system.
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The complete question is:
Bar-headed geese migrate from their breeding places to their cooler climes by flying over the highest peaks of the Himalayan mountains, where oxygen levels in the air are extremely low, and yet these birds can produce enough muscle power to complete the arduous journey. Match the following research questions about this incredible feat with the appropriate biological area that could investigate each question.
1)How do geese use environmental cues and landmarks to determine the timing and direction of their migration over the mountains? How do they get around?
2)How do the circulatory and respiratory systems cope with increased oxygen consumption in the face of low oxygen air?
3) Is the number of mitochondria (cell energy producers) in Bar-headed Geese muscle cells greater than in other species of geese with less demanding migration routes?
4) What DNA sequences are shared by species that can survive in low-oxygen environments, such as penguins and Bar-headed Geese that fly over the Himalayan peaks?
Which of the following reagents is best suited for the detection of sugar? Multiple Choice KovacsbiuretBenedict'siodine
Benedict's reagent is the best choice for the detection of sugar.
It is a solution of copper ions that is used to test for the presence of reducing sugars. The principle behind this test is that reducing sugars have the ability to reduce copper ions to copper oxide, which forms a precipitate and changes the color of the solution. This change in color can be used to identify the presence of reducing sugars.
Kovacs Reagent is not used for the detection of sugar. It is a reagent used to detect the presence of primary and secondary amines. It works by creating a color change when an amine reacts with the reagent.
The iodine reagent is not suitable for detecting sugar. It is a reagent that is used to test for the presence of starch. The principle behind this test is that when iodine is added to a solution containing starch, the iodine molecules will bind to the starch molecules and create a complex that results in a color change.
In summary, Benedict's reagent is the best choice for detecting sugar due to its ability to detect reducing sugars and its sensitivity to detect the presence of sugar in a sample.
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rearrange the following steps to show how changes in pressure influence the opening and closing of heart valves on the left side of the heart.
When the pressure affected the opening and closing of heart valves on the left side of the heart, the following things happened in the right order:
1. The open mitral valve allows blood to pass from the atrium into the left ventricle.
2. The volume and pressure of the ventricles both rise.
3. When ventricular pressure exceeds atrial pressure, ventricular contraction starts.
4. The mitral valve shuts
5. The mitral and aortic valves contract against one other.
6. An open aortic valve
7. The ventricular pressure is higher than the aortic pressure
8. Blood discharged into the aorta from the ventricle
9. Ventricular pressure is higher than aortic pressure.
10. The aortic valve shuts
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Rearrange the following steps to show how changes in pressure influence the opening and closing of heart valves on the left side of the heart.
Which four statements are true about the phenomena that occur between the Sun,
Earth, and Moon?
On Earth, one day is the time it takes Earth to orbit the Sun one time.
A solar eclipse occurs when the Moon passes between the Earth and Sun.
A lunar eclipse occurs when a Full Moon passes directly behind Earth and is
covered in Earth's shadow.
The time it takes Earth to revolve once around the Sun is a year.
The position of the Moon in relation to the Earth and Sun at a given point
determines its phase.
Tides are caused by the gravitational pulls between the Earth and the Sun.
Answer:Most of our lives, we are focused on what is in front of us. When we gaze at the stars, we reflect on our place in the universe. An eclipse event brings that reflection into more concrete terms.
Two types of eclipses are visible from Earth, an eclipse of the moon and an eclipse of the sun. A lunar eclipse occurs when the Earth moves between the sun and the moon, blocking the sunlight that is normally reflected by the moon. A solar eclipse occurs when the moon is directly between the sun and the Earth, casting a shadow on the Earth.
Product that is produced in high volume and with predictable demand and that is very price sensitive because the consumer can purchase it from a variety of competitors.
It is true to say that Product that is produced in high volume and with predictable demand and that is very price sensitive because the consumer can purchase it from a variety of competitors.
All shopper products which is buy by various consumers are representing the laws of organic market, so every kind of consumer eat exhibits the value versatility of interest. Nonetheless, this doesn't mean the connection among request and cost is equivalent across a wide range of customer merchandise. A few sorts of purchaser merchandise show exorbitant cost flexibility of interest, while others show very little.
There are different elements that decide a decent's value versatility of interest. These incorporate such things as the fundamental or trivial nature of specific products, the accessibility of cutthroat substitutes, and the impact of a decent's image name and promoting.Purchaser staples are a sub-class of shopper merchandise that are viewed as fundamental items. Instances of this incorporate food, drinks, and certain family merchandise. Purchasers view these products as essential and fundamental forever. These are the staples individuals can't (or are reluctant) to kill from their financial plan. Furthermore, these items are non-repeating, meaning they are required and utilized all year, not simply occasionally.
Hence, given statement is true.
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(Complete question) is:
Product that is produced in high volume and with predictable demand and that is very price sensitive because the consumer can purchase it from a variety of competitors.Select true or false.
noam chomsky said that children are born into the world with a_____, a biological endowment that enables the child to detect certain features and rules of language, including phonology, syntax, and semantics.
noam chomsky said that children are born into the world with a language acquisition device, a biological endowment that enables the child to detect certain features and rules of language, including phonology, syntax, and semantics.
Noam Chomsky proposed the Language Acquisition Device (LAD) in the 1960s as a result of his research on language learning. An infant's ability to learn and use language is allegedly enabled by the LAD idea, an instinctive brain capacity. A part of the nativist philosophy of language, it. According to this view, people have the "innate facility" or instinct to learn languages from birth. The primary argument used in favour of the LAD was the argument from the poverty of the stimulus, which contends that children would not be able to learn language as quickly as they do if they did not possess a significant amount of innate knowledge of grammar. This is because they rarely receive direct instruction in their first language and never have access to contradictory information.
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Which statements describe how the uterus, ovaries, and Fallopian tubes function together to assist in conception?
Select all that apply.
O Ovaries mature the ovum.
O The uterus stores glycogen.
O Fallopian tubes transport the ovum.
O The uterus supports pelvic structures.
O The ovary releases follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
The correct statement which describes function of uterus, ovaries, and Fallopian tubes are a) Ovaries mature the ovum, c)Fallopian tubes transport the ovum, d)The uterus supports pelvic structures.So,correct options are a,c,d
The ovaries foster an ovum to development during each regenerative cycle to aid origination. The Fallopian tubes transport the ovum during each regenerative cycle to aid conception.The perineum, not the uterus, upholds pelvic designs. The uterus plans for origination during each regenerative cycle by putting away enormous amounts of glycogen, proteins, lipids, and minerals in the endometrium.The ovaries answer FSH and LH set free from the front pituitary yet don't deliver these chemicals to aid origination.The ovaries are revealed in the peritoneal pit yet are fastened to the body wall through the suspensory tendon of the ovary which is a back expansion of the wide tendon of the uterus. The piece of the wide tendon of the uterus that covers the ovary is known as the mesovarium.
Hence,correct options are a,c,d.
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(Complete question) is:
Which statements describe how the uterus, ovaries, and Fallopian tubes function together to assist in conception?
Select all that apply.
a) Ovaries mature the ovum.
b) The uterus stores glycogen.
c) Fallopian tubes transport the ovum.
d) The uterus supports pelvic structures.
e) The ovary releases follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
The statements that describe how the uterus, ovaries, and Fallopian tubes function together to assist in conception are: (1) Ovaries mature the ovum; (2) The uterus stores glycogen; (3) Fallopian tubes transport the ovum.
Uterus is the organ present in females that is also known by the name womb. It is a muscular structure in the shape of an inverted pear where the development of the fetus takes place to form a fully grown child.
Ovaries are the female reproductive glands that synthesize the female gametes called ovum or egg. These are present in a pair, one at each side: left and right. Ovaries are also the site for hormone synthesis like progesterone and estrogen.
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fill in the blank. hormones called ___are produced and released by neurons in the brain, rather than by the endocrine glands, and delivered to organs and tissues through the bloodstream.
Hormones called neurohormones are produced and released by neurons in the brain, rather than by the endocrine glands, and delivered to organs and tissues through the bloodstream.
Hormones are substance couriers that are created and delivered by endocrine glands, like the pituitary, thyroid, and adrenal glands.
These hormones go through the bloodstream to target cells and tissues, where they tie to explicit receptors and trigger a reaction.
Instances of neurotransmitters are dopamine, serotonin, and acetylcholine. They are engaged with a great many substantial cycles, including mindset guidelines, mental capability, and muscle development.
Irregularities in synapse levels have been connected to different neurological and mental problems, like misery, uneasiness, and Parkinson's disease.
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During inhalation, a person s diaphragm and intercostal muscles contract, expanding the chest cavity and lowering the internal air pressure below ambient so that air flows in through the mouth and nose to the lungs. Suppose a person s lungs hold 1250 mL of air at a pressure of 1 atm. If the person expands the chest cavity by 525 mL while keeping the nose and mouth closed so that no air is inhaled, what will be the air pressure in the lungs in atm? Assume the air temperature remains constant.
The air pressure in the lungs after expanding the chest cavity by 525 mL will be 0.009 atm.
The air pressure in the lungs can be calculated using the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.If the person's lungs hold 1250 mL of air at a pressure of 1 atm and the person expands the chest cavity by 525 mL while keeping the nose and mouth closed so that no air is inhaled, the new volume of the lungs will be 1250 mL + 525 mL = 1775 mL. Now we can use the ideal gas law to find out the new pressure inside the lungs:
P = (nRT) / V
Where R= 0.0821 Latm/molK
T = 298 K (room temperature)
V = 1775 mL
n is not needed as the number of moles is not given, so we can cancel it out from the equation.
P = (0.0821 * 298) / 1775
P= 0.009 atm
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The air pressure in the lungs after expanding the chest cavity by 525 mL will be 0.009 atm.
The air pressure in the lungs can be calculated using the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.
If the person's lungs hold 1250 mL of air at a pressure of 1 atm and the person expands the chest cavity by 525 mL while keeping the nose and mouth closed so that no air is inhaled, the new volume of the lungs will be 1250 mL + 525 mL = 1775 mL.
Now we can use the ideal gas law to find out the new pressure inside the lungs:
P = (nRT) / V
Where R= 0.0821 Latm/molK
T = 298 K (room temperature)
V = 1775 mL
n is not needed as the number of moles is not given, so we can cancel it out from the equation.
P = (0.0821 * 298) / 1775
P= 0.009 atm
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How is it possible that plants can express firefly genes
A. Plants have the recessive firefly genes in their DNA.
B. Diverse forms of life share a common genetic code.
c. The genetic code for the fluorescent plant protein is a
mutation.
D. Proteins are engineered into genes in the DNA of
other organisms.
Plants can express firefly genes as diverse forms of life share a common genetic code. Hence option (B) is correct.
What is genetic code?Living cells convert information from genetic material encoded in proteins using a system of rules known as the genetic code. Two different kinds of genetic code exist. Codons from DNA or RNA can be used to express genetic information. The codons that are actually "read" when polypeptides are synthesized are known as RNA codons, which are found in messenger RNA (mRNA) (the process called translation).
Codons, a collection of three-letter nucleotide combinations that make up the genetic code, are each associated with a particular amino acid or stop signal. Codons are formed by three-base groups; one amino acid is represented by each codon (or start or stop). Unambiguous, redundant, and ubiquitous is the genetic code.
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which of the following is a process in which the dna itself is modified by environmental events and those genetic changes are then transmitted to children?
A process in which the DNA itself is modified by environmental events and those genetic changes are then transmitted to children is epigenetics.
Thus, the correct answer is epigenetics (A - look at the complete options under the explanation)
What are epigenetics?Epigenetics is the study of how your behаviors аnd environment cаn cаuse chаnges thаt аffect the wаy the genes work. Unlike genetic chаnges, epigenetic chаnges аre reversible аnd do not chаnge the DNА sequence, but they cаn chаnge how the body reаds а DNА sequence.
Gene expression refers to how often or when proteins аre creаted from the instructions within the genes. While genetic chаnges cаn аlter which protein is mаde, epigenetic chаnges аffect gene expression to turn genes “on” аnd “off.” Since your environment аnd behаviors, such аs diet аnd exercise, cаn result in epigenetic chаnges, it is eаsy to see the connection between the genes аnd the behаviors аnd environment.
Your question is incomplete, but most probably your full options were
a. epigenetics
b. genetic neuroscience
c. dizygotic mutation
d. behavioral genetics
e. ecological spreading
Thus, the correct option is A.
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which of the following developments in the late nineteenth and early twentieth centuries most directly represented a continuation of the pattern described in the excerpt? responses the growth of international immigration to the united states the growth of international immigration to the united states the expansion of sharecropping and tenant farming in the south the expansion of sharecropping and tenant farming in the south the consolidation of corporations into large trusts and holding companies the consolidation of corporations into large trusts and holding companies the organization of workers into local and national unions
a campaign that emphasised the right of women to vote. Supporting developing countries through foreign policy is one way to stop communism from spreading.
Expanding suffrage from the a system based on property ownership to only one based on voting by all adult white men enabled the country to transition into a more participatory democracy, which was also accompanied by the expansion of political parties. Supporting developing countries through foreign policy is one way to stop communism from spreading.a campaign that emphasised the right of women to vote. As a result of their connection via transportation networks, the North and the West established a solid relationship. Nationalism became a powerful force during the nineteenth century, causing profound changes in Europe's political and intellectual landscape. In place of the multiple-nation dynastic empires of Europe, these changes ultimately led to the rise of the nation-state.
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Although most animals and some plants detect and respond to sound vibrations, the
precise sensitivity that we call hearing is rare in the living world. It is highly developed only
in birds and mammals, and the same operational system applies in all vertebrate auditory
systems. Sound waves cause a liquid within the organism's auditory apparatus to vibrate.
These vibrations are picked up by receptors that transmit signals to nerve cells. These
cells then communicate the sound to the brain. Humans can hear vibrational frequencies
of 20 to 20,000 cycles per second; cats respond to frequencies of up to 50,000 cycles per
second; and porpoises and bats pick up frequencies of 100,000 cycles per second.
Which statement does the passage support?
A. Some frequencies are beyond the human hearing range.
B. Humans have the best hearing of all animals.
C. Ears are damaged by high frequencies.
D. Invertebrates have better "hearing" systems than vertebrates.
E. Cats and porpoises are adapted to hearing low frequencies.
Answer:
A. Some frequencies are beyond the human hearing range.
The passage states that humans can hear vibrational frequencies of 20 to 20,000 cycles per second, while cats respond to frequencies of up to 50,000 cycles per second and porpoises and bats pick up frequencies of 100,000 cycles per second. This indicates that some frequencies are beyond the human hearing range, and that other animals have a greater sensitivity to higher frequencies than humans do. It also supports that some animals are adapted to hearing high frequencies. The passage does not provide any information that supports the other statements B, C, D and E.
eukaryotic cells have two particular methods with which to divide: mitosis and meiosis. each process has unique properties that allow it to achieve highly efficient and specific replication. which of the following statements best describes a key difference between the processes of mitosis and meiosis? let w represent the number of attempted experiments to get one experiment that is not successful. the random variable w has a geometric distribution with mean 4 and standard deviation 3.5. which of the following is the best interpretation of the standard deviation? A. Mitosis creates identical, diploid daughter cells, whereas meiosis createsgenetically unique, haploid daughter cells.B. Mitosis creates identical, haploid daughter cells, whereas meiosis createsgenetically unique, diploid daughter cells.C. Mitosis creates genetically unique, diploid daughter cells, whereas meiosis createsidentical, haploid daughter cells.D. Mitosis creates genetically unique, haploid daughter cells, whereas meiosiscreates identical, diploid daughter cells.
Although eukaryotes and prokaryotes both engage in cell division, they do so in different ways. In particular, eukaryotic cells divide using the processes of mitosis and meiosis.
Mitosis results in two capitals that are identical to the original nexus. Meiosis, on the other hand, results in four capitals, each having half the number of chromosomes of the original cell. In creatures, meiosis only occurs in the cells that give rise to the coitus cells( gametes), i.e., the egg and the sperm.
Mitosis is when a eukaryotic cell nexus splits in two, followed by the division of the parent cell into two son cells.
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The statement describing the key difference between mitosis and meiosis is: (A) Mitosis creates identical, diploid daughter cells, whereas meiosis creates genetically unique, haploid daughter cells.
Mitosis is the process of cell division where one parent cell divides to form two daughter cells. These cells are similar to each other as well to their parent cell. The chromosomal number remains same in both the daughter cells as that to their parent cell and this is why it is also called equational division.
Meiosis is the process where one parent divides to form 4 daughter cells and that have half the number of chromosomes, thus it is termed as reductional division.
The given question is incomplete, the complete question is:
Eukaryotic cells have two particular methods with which to divide: mitosis and meiosis. each process has unique properties that allow it to achieve highly efficient and specific replication. which of the following statements best describes a key difference between the processes of mitosis and meiosis?
A. Mitosis creates identical, diploid daughter cells, whereas meiosis creates genetically unique, haploid daughter cells.
B. Mitosis creates identical, haploid daughter cells, whereas meiosis creates genetically unique, diploid daughter cells.
C. Mitosis creates genetically unique, diploid daughter cells, whereas meiosis creates identical, haploid daughter cells.
D. Mitosis creates genetically unique, haploid daughter cells, whereas meiosis creates identical, diploid daughter cells.
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Corneal tissue transplantation has an extremely high success rate for a variety of reasons, including all of the following with exception of:
O Avascularity
O Reasonable low concentration of class I antigens
O An essential absence of Class II antigens
O Eccentrically place grafts
Corneal tissue transplantation has an extremely high success rate for a variety of reasons, including all of the following with exception of:
Eccentrically place grafts
A healthy donor cornea is substituted for a damaged or diseased cornea during a surgical operation known as corneal tissue transplantation, also known as a corneal graft or transplant. With a success rate of over 90% for penetrating keratoplasty (PKP) and over 95% for endothelial keratoplasty, corneal tissue transplantation has a very high success rate (EK). This is because of a number of elements, including the cornea's avascularity, the low concentration of class I antigens, and the absence of class II antigens, all of which lower the risk of rejection. The operation can enhance eye health and attractiveness, lessen pain and discomfort, and increase vision.
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an antepartum fetal surveillance procedure carried out after 28 weeks gestational age exam. by fetal heart rate monitoring and the mother marking the movements of the fetus, this exam detects fetal well-being by recording movement, heart rate and reactivity of the heart rate of the fetus. abnormal results lead to immediate further exploration of the fetal condition
Antepartum fetal surveillance is basically a procedure which involves the monitoring of the fetal heart rare in order to assess the risk of death of fetus during pregnancy.
Antepartum fetal surveillance techniques are basically based on the assessment of fetal heart rate or the FHR patterns. This procedure is done after 28 weeks gestational age exam. This procedure is used along with real-time ultrasonography as well as umbilical artery Doppler velocimetry to evaluate well-being of the fetus.
This procedure is very important to asses the risk of death of the fetus in pregnancies which can be due maternal conditions. Abnormal results achieved in this process would mean further exploration of the condition of the fetus.
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immunofluorescence analysis of mitochondria in control and mutant cells gives you the following images. mitochondria in wildtype cells are more linear than those in mutant cells. which of the following proteins is most likely defective in this mutant?
The correct answer is A mitochondrial fission factor. It appears that the mitochondria of wildtype cells are more linear in form, whereas the mitochondria of mutant cells are more rounded or round. This implies that the protein is probably flawed in this mutation.
According to the available data, the altered shape of the mitochondria in the mutant cells points to a flaw in a protein essential for maintaining the shape of the mitochondria. A protein network called the mitochondrial reticulum, which is made up of many proteins including mitofusins and intermediate filaments, plays a crucial function in fusing the outer mitochondrial membranes and preserving the shape of mitochondria in normal cells.
The mitochondrial reticulum and other cellular pathways that control the shape of mitochondria may potentially contain other proteins that are faulty. It would be necessary to do more research, such as genetic testing or functional tests, to determine precisely which protein in the mutant cells is faulty.
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The complete question is:
Immunofluorescence analysis of mitochondria in control and mutant cells gives you the following images. Which of the following proteins is most likely defective in this mutant? Please note that mitochondria are labeled by expressing RFP-tagged TOM20, a commonly used mitochondrial marker protein; RFP: Red Fluorescent Protein
a) ATP Synthase
b) A mitochondrial fission factor
c) kinesin
d) alpha-tubulin
While his theory of evolution by natural selection applies to living things, Darwin was also a knowledgeable:
mathematician
astronomer
physicist
geologist
While his theory of evolution by natural selection applies to living things, Darwin was also a knowledgeable geologist
Charles Darwin, full name Charles Robert Darwin, was an English naturalist whose scientific theory of evolution by natural selection served as the cornerstone of modern evolutionary studies. Darwin was born on February 12, 1809 in Shrewsbury, Shropshire, England, and died on April 19, 1882 in Downe, Kent. Darwin, a jovial country gentleman, first alarmed Victorian society by claiming that humans and animals had a common ancestor. By the time of his death, evolutionary imagery had permeated every branch of research, literature, and politics. His nonreligious biology, however, appealed to the burgeoning class of professional scientists. The highest honor bestowed upon a British citizen was Darwin's burial at Westminster Abbey, despite the fact that he was an atheist himself.
After completing a circumnavigation of the globe aboard the HMS Beagle in 1837–1839, Darwin developed his audacious theory in private. It was not until On the Origin of Species (1859), a book that had a significant impact on contemporary Western society and thought, that he finally gave it full public expression.
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Select all that applyWhich of the following are correct descriptions of a gene?Multiple select question.A unit of heredityOne or more polypeptides with a specific functionA segment of DNA that produces a functional productA chromosome
A unit of heredity following are correct descriptions of a gene remaining was not about correct for gene
A segment of DNA that produces a functional product
A chromosome is not correct description of a gene. Genes are segments of DNA located on a chromosome that contain the genetic information that provides the instructions for the formation, function, and reproduction of cells and organisms. Genes can code for one or more polypeptides that have specific functions
A gene is a unit of heredity, which is the process of passing on genetic traits from one generation to the next. Genes are segments of DNA located on chromosomes that contain the genetic information that provides the instructions for the formation, function, and reproduction of cells and organisms. The sequence of nucleotides (A, C, G, and T) in a gene determines the sequence of amino acids in a protein, which in turn determines the protein's function. Genes control everything from eye color and hair texture to susceptibility to certain diseases. Changes in the DNA sequence of a gene, called mutations, can result in genetic disorders or variations in physical characteristics. The combination of genes inherited from both parents determines an individual's unique traits.
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A unit of heredity, one or more polypeptides with a specific function, and a segment of DNA that produces a functional product are correct descriptions of a gene. Here options A, B, and C are the correct answer.
A gene is a unit of heredity, which means that it is a section of DNA that contains the information needed to code for a specific trait. A gene is a segment of DNA that produces a functional product, it is a unit of genetic information that codes for a specific protein or RNA molecule.
These proteins or RNA molecules have specific functions in the body and are responsible for the physical and behavioral characteristics that we inherit from our parents. A chromosome is not a correct description of a gene, Chromosomes are structures in cells that contain DNA and proteins.
They are found in the nucleus of cells, and they are made up of many genes. Each chromosome contains a long, coiled strand of DNA that carries genetic information, which is packaged with proteins to form the chromosomes.
Complete question:
Which of the following are correct descriptions of a gene? Multiple select question.
A - A unit of heredity
B - One or more polypeptides with a specific function
C - A segment of DNA that produces a functional product
D - A chromosome
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What were John Muir and Gifford Pinchot's motivations to get involved in
the land management issues?
Both John Muir as well as Gifford Pinchot were concerned with the environment due of the deforestation, which led to their involvement in land management concerns.
Explain the roles of John Muir and Gifford Pinchot?America experienced an environmental catastrophe in the 1890s.
Land designated for homesteading in the rugged West languished unclaimed, too far away and dangerous for potential farmers, and completely unprotected by that of the government. For lumber, corporations purchased vast forests. Many believed that a timber famine would occur within the following 20 years.John Muir, the most renowned naturalist in American history, was traveling with Gifford Pinchot, a teenage forester who would go on to be the first chief of a U.S. Forest Service.The two had come to represent the opposing ideologies at the core of the American system of public lands: conservation vs. preservation. Muir believed that nature was God and that it was best preserved without human interference. Pinchot believed that nature was a commodity that should be responsibly shared by as many people as possible.To know more about the land management, here
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