The experiments of photosynthesis showed that the O2 from plants was labeled with 18O only if water was the source of the tracer. If the 18O was introduced to the plant in the form of CO2, the label did not turn up in the released O2.
Scientists confirmed van Niel's hypothesis that oxygen released from photosynthesis comes from water with the use of 18O, a heavy isotope, as a tracer to follow the fate of oxygen atoms during photosynthesis.
The stages of photosynthesis that transform solar energy into chemical energy are known as light reactions. O2 is released as a consequence of the splitting of water, which also serves as a source of protons and electrons. Chlorophyll absorbs light, which triggers the transfer of electrons and hydrogen ions from water to NADP+, an electron acceptor. where they are momentarily kept. The light processes add two electrons and a hydrogen ion to convert NADP+ to NADPH using sun energy. The light reactions also produce ATP by phosphorylating ADP by adding a phosphate group under the control of chemiosmosis. Thus, NADPH and ATP are the first two molecules that light energy is transformed into.
Carbon fixation is the mechanism by which CO2 from the air is incorporated into organic molecules already present in the chloroplast to start the Calvin cycle. By adding electrons, the cycle then converts the fixed carbon to carbohydrates.
NADPH, which obtained its electron payload from light processes, provides the reducing power. converting CO2 .The cycle needs ATP, which is produced by the light reactions, as well as chemical energy in the form of carbohydrate.
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Use the absorption spectrum graph and your knowledge of plant pigments to determine which three statements are true.
-The orange and yellow colors of fall foliage are mostly due to carotenoids in the plants.
-Visible light that is not absorbed by chloroplast pigments determines what color a plant will appear to your eye.
-Different pigments in plant chloroplasts absorb light of different wavelengths.
Your eye will see a plant's colour based on visible sunlight that is not captured by chloroplast pigments. - Plant chloroplasts contain various pigments that absorb various wavelengths of light.
Chlorophyll is a pigment that absorbs visible light in the red (long wavelength) & blue (short wavelength) portions of the spectrum. The plant appears green because it reflects rather than absorbs green light. The chloroplasts of plants contain chlorophyll. Light with a wavelength of 400–600 nm is absorbed by carotenoids. Blue and green dominate this region of the spectrum. Yellow, orange, and red wavelengths of light are reflected by carotenoids. We see them as yellow, orange, & red because of this.
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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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humans rely on their senses of to gather information about the world around them
The given statement that humans rely on their senses of to gather information about the world around them is true because they depend on the senses of sight, taste, touch, hearing and smell.
What senses do people use in dealing with information?Humans have five senses: sight, hearing, taste, smell, and touch with the skin serving as the fifth. Our eyes are by far the most crucial sensory organs. Up to 80% of all stimuli are registered by our visual sense.
The five senses—sight, taste, touch, hearing, and smell—gather data about our surroundings that the brain interprets. Based on prior experience (and subsequent learning), as well as by combining the data from each sense, we make sense of this information.
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complete question:
TRUE/FALSE Humans rely on their senses of to gather information about the world around them.
______ is the pressure in the arteries at the peak of ventricular contraction, while ______ is the pressure in the arteries during ventricular relaxation.
Systolic pressure is the pressure in the arteries at the peak of ventricular contraction, while diastolic pressure is the pressure in the arteries during ventricular relaxation.
Systolic pressure is the measure of the highest pressure in the arteries during a heartbeat. It represents the force exerted by the blood against the walls of the arteries as the heart pumps it out. The measurement is taken when the ventricles of the heart contract, pushing blood through the arteries. A high systolic pressure, also known as hypertension, increases the risk of heart disease, stroke, and kidney damage. A normal systolic pressure is considered to be between 90-120 mmHg. However, optimal systolic pressure is considered to be around 115mmHg. A systolic pressure that is consistently above 130 mmHg is considered high and may require treatment. Systolic pressure should be checked regularly as part of a routine physical examination.
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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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What is Tonoplast????
Answer:a semipermeable membrane surrounding a vacuole in a plant cell.
Explanation:
Answer:I hope this helps
Explanation:
Tonoplast-a membrane which bounds the chief vacuole of a plant cell.
Tonoplast is a single membrane that bounds the vacuoles and separates it from cytoplasm. In plants, tonoplasts facilitate uphill transport of many ions and other materials, making their concentration higher in vacuole than cytoplasm.
A tonoplast is a cytoplasmic-membrane surrounding the vacuole within plant cells. The tonoplast is also known as the vacuolar membrane.
The tonoplast is found surrounding the vacuole of a plant cell and separates the inner vacuole material, or lumen, from the surrounding cellular material, or cytosol
Tonoplast is a single membrane that bounds the vacuoles and separates it from cytoplasm. In plants, tonoplasts facilitate uphill transport of many ions and other materials, making their concentration higher in vacuole than cytoplasm. So, the correct answer is 'Membrane boundry of the vacuole of plant cells'.
Which of the following cells is/are capable of specifically responding to a nearly infinite number of epitopes?
An epitope is the part of an antigen that the host’s immune system recognizes, eliciting the immune response to an invading pathogen.
What are Epitopes?It specifically binds to the corresponding antigen receptor on the immune cell (such as a B cell) and binding only occurs if the structures are complementary.
Once epitope and receptor bind together in this puzzle-like combination, the production of antibodies is stimulated.
These antibodies are specifically targeted to the epitopes that bind to the antigen receptors. In this manner, the epitope is also the region of the antigen that is recognized by the specific antibody which then removes the antigen from the host organism after binding to it. The region on the antibody which binds to the epitope is known as the paratope.
Therefore, An epitope is the part of an antigen that the host’s immune system recognizes, eliciting the immune response to an invading pathogen.
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In the cross, aabbcc x aabbcc, what is the probability of producing the genotype, aabbcc?
a. 1/16
b. 1/64
c. 1/4
d. 1/32
e. 1/8
The forked line method is an efficient way of getting the genotypic and phenotypic ratios when making crosses that involve many genes. In the exposed example, the probability of getting the genotype AABBCC is 1/64.
SO , the correct option is A ;
We will assume these are autosomal genes that assort independently and express complete dominance.
We need to get the genotype AABBCC.
To avoid making a Punnett square, we can just use the the forked line method.
We will perform crosses separately and then multiply the combined proportions to get the possible genotypes of the progeny.
Lets us see,
Gene A
Parental) Aa x Aa
F1) 1/4 AA, 1/2 Aa, 14 aa
Gene B
Parental) Bb x Bb
F1) 1/4 BB, 1/2 Bb, 14 bb
Gene C
Parental) Cc x Cc
F1) 1/4 CC, 1/2 Cc, 14 cc
Possible genotypes
1/4 AA x 1/4 BB x 1/4 CC = 1/64 AABBCC
1/4 AA x 1/4 BB x 2/4 Cc = 2/64 AABBCc
1/4 AA x 2/4 Bb x 2/4 Cc = 4/64 AABbCc
2/4 Aa x 2/4 Bb x 2/4 Cc = 8/64 AaBbCc
1/4 AA x 1/4 BB x 1/4 cc = 1/64 AABBcc
1/4 AA x 1/4 bb x 1/4 CC = 1/64 AAbbCC
1/4 aa x 1/4 BB x 1/4 CC = 1/64 aaBBCC
.
.
.
.
And so on, until you get the genotypes of the whole progeny.
Note: In the attached files you will find a better image.
To the goal of this problem, we just need to get the probability of having individuals with the genotype AABBCC. ⇒⇒ 1/64
The probability of producing the genotype AABBCC is 1/64.
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the text points out that a macrolevel analysis of gender examines structural features, external to the individual, that perpetuate gender inequality. these structures are referred to as , meaning that gender is one of the major ways by which social life is organized in all sectors of society. group of answer choices gendered institutions gendered determinants gendered structures gendered correlates
Gendered institution structures are referred to, implying that gender is one of the major ways by which institutions operate.
The term "gendered institutions" refers to the presence of gender in the processes, practices, images and ideologies, and power distributions in various sectors of social life.
Education is an example of a gendered institution. Girls and boys are expected to dress differently and appropriately in education, they frequently have gender-segregated classes (such as separate sex education), and how girls and boys play differently at recess makes it a gendered institution.
The term "gendered institutions" refers to how entire institutions are patterned by gender. Men and women are channeled into different, and often differently valued, social spaces or activities in a gendered institution, and their choices have different, and often unequal, consequences.
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Which of the following processes will occur in the presence or absence of oxygen?
A. glycolysis
B. electron transport chain
C. oxidative phosphorylation
D. cellular respiration
E. citric acid cycle
Glycolysis processes will occur in the presence or absence of oxygen.
Glycolysis is a process which takes place in presence and absence of oxygen and takes place in cytoplasm of the cell.
glycolysis is where glucose is broken down into 2 molecules of pyruvate and 4 ATP and 2 NADH molecules are produced, this in absence of oxygen is converted to lactic acid with the help of lactate dehydrogenase
whereas, in the presence of oxygen, the NADH produced in the cycle moves to the kreb cycle and then oxidative phosphorylation takes place, where ATP is produced.
The anaerobic glycolysis takes place during absence of oxygen, which is during exercise.
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About 0.3% of human live births are trisomic. In contrast, only 0.02% of human live births are monosomic. Select the best explanation for why the occurrence of monosomics is less than that of trisomics.
a. Meiotic nondisjunction rarely produces monosomic gametes.
b. Deleterious recessive alleles are always expressed on the monosomic chromosome but not on the trisomic chromosomes.
c. Mitosis is less likely to be completed correctly in monosomics than in trisomics.
d. Gene dosage imbalance is more likely to lead to spontaneous abortion in monosomics than in trisomics.
Deleterious recessive alleles are always expressed on the monosomic chromosome but not on the trisomy chromosomes.
A trisomy and a monosomy are types of numerical chromosome abnormalities that can cause the certain birth defects.
A normal person has 46 chromosome and 23 pair of chromosomes.
But, numerical chromosome like trisomy and monosomy, abnormality can cause each cell to have 45 or 47 chromosomes in each cell.
Deleterious is masked by the dominant allele on trisomic chromosome but not on the monosomic.
for Example, trisomy 21 or Down syndrome is an example of trisomy.
Monosomy X or Turner syndrome is an example of monosomy, both are the abnormalities of chromosome.
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If the input and output of carbon is balanced in the carbon cycle, what can be generalized about the resident times of carbon in organisms?
A.The resident time would be zero because carbon is released as soon
B. The resident time will depend on where the organism lives because it might be influenced by cellular respiration
C.The resident time will decrease because plants will be taking in carbon dioxide to use for photosynthesis
D. The resident time will increase because there will be a buildup of carbon in the atmosphere
Answer: A
Explanation:
"balanced” gives a key word that nothing is unequal so the release of carbon and the carbon being absorbed can’t be unequal (decrease or increase) so I makes sense for it to be zero, the moment carbon is released is the moment it becomes absorbed.
The resident time will depend on where the organism lives because it might be influenced by cellular respiration.
Option (B) is correct.
In a balanced carbon cycle, carbon input and output are in equilibrium, indicating a stable system. The resident time of carbon in organisms (the time carbon remains within an organism before being released) would be influenced by various factors, including the organism's habitat and its metabolic processes, such as cellular respiration.
Organisms in different environments have varying rates of respiration and decomposition, affecting how long carbon is retained. For instance, in a terrestrial environment, the resident time might be longer due to slower decomposition rates compared to an aquatic environment.
Therefore, the resident time of carbon in organisms is not universally zero (A), decreasing (C), or increasing (D), but rather dependent on ecological and physiological factors, making option B the most generalized and accurate statement.
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Francesco Redi was a scientist that performed an experiment to determine whether maggots formed from rotting meat. Versions of his experiments are described below.
Meat was placed in two beakers. One of the beakers was left open to the air. The other beaker was covered with a fabric that only allowed air to get in. As the meat rotted, flies landed on the meat in the open beaker but were unable to get to the meat with the fabric over it. After a few days, maggots appeared on the meat in the open beaker, but not in the closed beaker.
In the next experiment, rotting meat was placed in two beakers. Dead flies were placed in one beaker, and live flies were placed in the other beaker. Both beakers were sealed, allowing no air in. Maggots appeared in the beaker with live flies, but not in the beaker with dead flies.
Explain how the surface area and volume of cells affect the rate of exchange of materials in and out of cells in multicellular organisms.
In order to test the spontaneous generation of maggots, an Italian scientist named Francesco Redi created an experiment in 1668 that involved putting fresh meat in two distinct jars. One jar was left open, while the other had a cloth covering it.
Redi came to the conclusion that the meat in the open jar had maggots because the flies had deposited eggs on it. No maggots were created because the flies were unable to lay their eggs on the meat in the covered container. Redi therefore shown that meat in decay does not breed maggots.
However, one of van Helmont's contemporaries, Italian physician Francesco Redi (1626-1697), conducted an experiment in 1668 that was among the first to disprove the notion that maggots (fly larvae) spontaneously develop on meat left out in the open.
Minerals are _______ substances with a fixed crystal structure and a unique chemical composition.
Answer:
Minerals are inorganic substances with a fixed crystal structure and a unique chemical composition.
What are characteristics of the tundra and what ecosystems are found there?
The tun--dra has does not have vegetations owing to the fact that there is little rainfall there.
What is the tun--dra?The tu--ndra is a found in the Arctic and on high mountains, characterized by low temperatures and short growing seasons. The soil is permanently frozen and vegetation is limited to lichens, and small shrubs.
The tundra is home to a variety of unique and adapted species such as polar bears. Additionally, migratory birds such as snow geese, sandpipers, and plovers use the tundra as breeding and nesting grounds. The tundra ecosystem is fragile, and human activities such as oil and gas development and climate change is a threat to its wildlife and vegetation.
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overpopulation that forced farming families to migrate to urban centers overpopulation that forced farming families to migrate to urban centers the movement to promote child labor to instill values of hard work and frugality the movement to promote child labor to instill values of hard work and frugality the preference of factory owners for a cheap labor force the preference of factory owners for a cheap labor force the need for increased family income during the great depression
The conditions shown in the photograph emerged most directly as a result of the preference of factory and industries owners of textile for a cheap labor force for employment.
The effects on the family, which is the most fundamental social unit, may have been the most pernicious effects of the new circumstances. In its purest form, the preindustrial family was an economic and social unit. On a family farm or in a shop, married couples and their kids frequently shared labor or worked side by side for the benefit of the whole family. Women and men frequently worked in their rural houses in 18th-century Great Britain, executing tasks like textile spinning and weaving for merchant proprietors on a piecework basis. The "putting-out" or domestic system was the name given to this decentralized system of employment. But as industrial cities and manufacturing production increased, most people had to separate their homes from their places of employment.
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The complete question is:
1908 photograph by Lewis Hine of Sadie Pfeifer, one of many children working in a South Carolina cotton mill. The conditions shown in the photograph emerged most directly as a result of which of the following?
Overpopulation that forced farming families to migrate to urban centersThe movement to promote child labor to instill values of hard work and frugalityThe preference of factory owners for a cheap labor forceThe need for increased family income during the Great Depressionpleaseee answer !! pleaseeee answer
Answer:
B
Explanation:
B) cancer has damaged cerebellum
Brain cancer can cause a number of neurological symptoms, depending on the location and size of the tumor. The cerebellum is a region of the brain located at the base of the skull that plays an important role in balance, coordination, and fine motor control. If a brain tumor develops in or near the cerebellum, it can cause damage to the cerebellar tissue, leading to symptoms such as loss of balance, decreased coordination, and ataxia (difficulty with fine motor control). This would be the most likely cause of the symptoms described in the question.
A) cancer has damaged pons and hypothalamus, C) cancer has damaged pons, D) cancer has damaged hypothalamus can also cause similar symptoms but it is less likely than cerebellum.
Answer:
B) Cancer has damaged Cerebellum.
Explanation:
The Cerebellum controls balance and motor movement, as well as hand-eye coordination.
The Pons controls unconscious processes, breathing, and your sleep schedule.
The Hypothalamus works towards creating homeostasis, which is the stable state of your body, and includes temperature, heart rate, and many others.
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HELPPPPPPPPPPPPPPPPPPP
Answer:
Super Giants is the answer
Explanation:
Super Giants are so big and their increase in size means that there is a greater surface to give off light.
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.
assume that cohesin is not degraded before anaphase begins in mitosis. what might cause this abnormality? please choose the correct answer from the following choices, and then select the submit answer button. answer choices shugoshin is made but is not broken down. the enzyme separase is not functional. shugoshin is not being made or is defective. homologous chromosomes have not paired correctly.
Assume that cohesin is not degraded before anaphase begins in mitosis. Shugoshin is made but is not broken down. the enzyme separase is not functional. shugoshin is not being made or is defective. homologous chromosomes have not paired correctly.
The protein Shugoshin that including Sgo1 and Sgo2, are evolutionarily conserved function to protect sister chromatid cohesion, thus it ensuring chromosomal stability during meiosis and mitosis in eukaryotes.
It is known about the molecular basis of Sgo 1 degradation and its temporal control during mitosis. when Shugoshin is degraded by the anaphase-promoting complex, that allowing the separation of sister centromeres in anaphase.
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a study of iron deficiency among infants compared samples of infants following different feeding regimens. one group contained breast-fed infants, while the infants in another group were fed a standard baby formula without any iron supplements. the data consisted of blood hemoglobin levels at twelve months of age for each infant in the study
The study aimed to compare the prevalence of iron deficiency among two groups of infants with different feeding regimens.
The first group was composed of breast-fed infants, while the second group was composed of infants fed a standard baby formula without any iron supplements. The data collected for the study was the blood hemoglobin levels of each infant at 12 months of age. Iron is an essential nutrient for infants, as it plays a crucial role in the formation of hemoglobin, which carries oxygen to the body's tissues. Lack of iron can result in iron-deficiency anemia, which can have negative impacts on an infant's health and development. By comparing the hemoglobin levels of breast-fed and formula-fed infants, the study aimed to shed light on the effectiveness of different feeding regimens in providing adequate iron for infants and preventing iron deficiency. The results of this study could have important implications for infant feeding and nutrition guidelines, as well as for pediatricians and parents in making informed decisions about infant feeding. In conclusion, the study of iron deficiency among infants compared two groups of infants with different feeding regimens, with the goal of comparing the prevalence of iron deficiency among them. The data collected was the blood hemoglobin levels of each infant at 12 months of age, which provides insight into the effectiveness of different feeding regimens in providing adequate iron for infants.
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This study aimed to compare the prevalence of iron deficiency among two groups of infants with different feeding regimens.
The first group was composed of breastfeeding infants, while the second group was composed of infants fed a standard baby formula without any iron supplements. The data collected for the study was the blood hemoglobin levels of each infant at 12 months of age. Iron is an essential nutrient for infants, as it plays a crucial role in the formation of hemoglobin, which carries oxygen to the body's tissues. Lack of iron can result in iron-deficiency anemia, which can have negative impacts on an infant's health and development. By comparing the hemoglobin levels of breastfed and formula-fed infants, the study aimed to shed light on the effectiveness of different feeding regimens in providing adequate iron for infants and preventing iron deficiency. The results of this study could have important implications for infant feeding and nutrition guidelines, as well as for pediatricians and parents in making informed decisions about infant feeding. In conclusion, the study of iron deficiency among infants compared two groups of infants with different feeding regimens, with the goal of comparing the prevalence of iron deficiency among them. The data collected was the blood hemoglobin levels of each infant at 12 months of age, which provides insight into the effectiveness of different feeding regimens in providing adequate iron for infants.
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Porphyra also contains phycoerythrin, which is a red pigment.
1. Suggest a reason for phycoerythrin being absent from the Porphyra chromatogram
2. Predict one colour of light that will be absorbed efficiently by
phycoerythrin.
1A)a reason for phycoerythrin being absent from the Porphyra chromatogram is that
the pigment didn't dissolve/ was insoluble when the pigments from the algae were extracted
1B) Also, the pigment was not moved by solvent
/ was insoluble in the solvent used to separate the pigments
2A) orange/yellow/green/blue/violet can be the colour of light that will be absorbed efficiently by phycoerythrin.
R-phycoerythrin (R-PE), a red algal pigment complex, was isolated and refined from the recently discovered red alga Colaconema formosanum. Then, its bioactivities were looked into. It was shown that R-PE treatment significantly increased the vitality of the mammalian cell lines (>70%) but had no effect on the morphology of NIH-3T3 cells. It had less of an impact on the production of IL-6 and TNF- in lipopolysaccharide-stimulated RAW264.7 cells.
A significant amount of R-PE can be extracted from the crude P. haitanensis unclarified extract using the scalable technique outlined in this procedure. The value of this China-specific endemic Porphyra is increased by the high protein recovery method, which also speeds up the processing process and lowers expenses.
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if you are standing still and then you start moving forward, the endolymph in your inner ear will . if you are standing still and then you start moving forward, the endolymph in your inner ear will . move forward more quickly than the hair cells move forward more slowly than the hair cells not move move at the same pace as the hair cells
if you are standing still and then you start moving forward, the endolymph in your inner ear will move forward more slowly than the hair cells
endolymph, also known as Scarpa's fluid can be defined as the extracellular solution for the nerve cells in the auditory and vestibular systems.
cation present in endolymph is potassium.
in the ear, the endolymph defined as the fluid which is contained in the membranous labyrinth of the inner ear.
it can detect acceleration and deceleration, when body moves forward the endolymph lags behind and then after some time moves forward but slowly.
when you stop, endolymph still moves slowly then backward.
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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.
FILL THE BLANK __________ are responsible primarily for regulating sexual activity, socializing children, and providing affection and companionship for members.​ a. ​Preindustrial families b. ​Agricultural families c. ​Hunting and gathering families d. ​Contemporary families
Contemporary families are responsible primarily for regulating sexual activity, socializing children, and providing affection and companionship for members (option D)
Families in modern/ contemporary societies become part of social change and strive to change over time. They implement all changes aimed at raising and advancing educational and professional standards, thereby increasing the overall impact on the family and its function.
These families assume overall responsibility for their children's upbringing, including their sexual and marital lives. Because these families have a higher standard of living, they can devote more love, care, and attention to their children.
Families play an important role in social development because they are the basic and essential building blocks of societies.
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FILL IN THE BLANK Bright-field microscopy depends on the balance between light and contrast as well as the quality of the lenses used. A(n) __________
Bright-field microscopy depends on the balance between light and contrast as well as the quality of the lenses used. A microscope objective lens is used in the process.
Bright-field microscopy relies on a number of variables to produce high-quality images, including good lens quality and a balance between light and contrast.
It is common practice to illuminate materials with light and observe the light that passes through or is reflected by the sample in bright-field microscopy.
Bright-field microscopy relies on a number of variables to produce high-quality images, including good lens quality and a balance between light and contrast.
The microscope objective lens is essential to the process of bright-field microscopy because it affects how well samples are seen as well as how well light and contrast are balanced.
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when we exhale, the diaphragm and intercostal muscles ___ and ___ the pressure in the thoracic cavity, forcing air out of the lungs.
When we exhale, the diaphragm and intercostal muscles relax and increase the pressure in the thoracic cavity, forcing air out of the lungs.
The diаphrаgm, locаted below the lungs, is the mаjor muscle of respirаtion. It is а lаrge, dome-shаped muscle thаt contrаcts rhythmicаlly аnd continuаlly, аnd most of the time, involuntаrily. Upon inhаlаtion, the diаphrаgm contrаcts аnd flаttens аnd the chest cаvity enlаrges. This contrаction creаtes а vаcuum, which pulls аir into the lungs. Upon exhаlаtion, the diаphrаgm relаxes аnd returns to its domelike shаpe, аnd аir is forced out of the lungs.
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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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Please help me this question guys please explain
U = Union
n= intercestion
B'= not b
A"= not a
so AnB'
should be B
if 2.50 = 1
2.50x8=
20
1×8 = 8
should be $8
What is equation?The equation in question would completely break down because people would be able to do whatever they wanted without being stopped or punished for doing something illegal.
The transformation of System A into System B is:
Equation [A2]+ Equation [A 1] → Equation [B 1]"
To transform System A into System B as 1 × Equation [A2] + Equation [A1]→ Equation [B1] and 1 × Equation [A2] → Equation [B2].
Therefore, if 2.50 = 1
2.50x8=
20
1×8 = 8
should be $8
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The complete part of the question will be
"How do we transform System A into System B?
Equation [A1] → Equation [B1]
Equation [A2]→ Equation [B2]
Equation [A1]+Equation [A 2] → Equation [B 2]
Equation [A2]+ Equation [A 1] → Equation [B 1]"
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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