Answer:Not experiencing migration.
The temperature in a room is 56c. What would the velocity of a sound wave be at this temperature
Answer:
The temperature in a room is 56°C. The velocity of a sound wave be at this temperature would be 364.6 Hz.
You are given two test tubes, A and B, each with 3 mL of starch solution. You add 1 mL of amylase to tube A, and 1 mL of water to tube B. After waiting for 30 minutes, what would you expect to see?
Answer:
CHOOSE
Explanation:
MATHEMATICSN HOLD ON
Why are scientists studying the effects of warming on boreal forests? How far might this forest biome move if climate projections are correct?
Answer:
Scientists studying the effects of warming on boreal forests which change the biome.
Explanation:
The main effect of warming on boreal forests is to change the biome because the plants and animals will not tolerate the increased temperature which occcurs due to climate change so the plants and animals disappeared from the boreal forests and change its biome. The animals migrated to other suitable environment where they continue its growth and increase their population. If climate projections are correct, the biome of this forest go to those places where the environment is suitable.
The diagram shows the position of earth during solstice. select the area that would be getting around 24 hours of daylight each day.
The answer is Artic Circle Zone (red square at the top)
Explanation:
A solstice occurs two times in a year when the Sun reaches farther either the south or the north of Earth. In the image presented, there is a solstice because the sunlight reachers farther in the North. Additionally, this phenomenon occurs due to the tilt (inclination) of Earth, and it increases the number of daylight/night hours in different zones.
In the case of the Arctic Circle Zone (north pole) it is likely during the solstice, this zone has around 24 of daylight each day because almost all this zone is directly exposed to the sunlight, and therefore this will always be reached by sunrays despite the rotation of Earth (rotation of Earth in its axis). On the other hand, other zones will not be exposed to sunlight all the time because the location and rotation will cause these areas are in the dark zone of Earth during specific hours every day.
Answer: The top red square near the axis.
Explanation:
Ok, the Earth's axis is the "line" around which the Earth rotates.
This means that after a rotation, the 3 bottom red boxes will be in the dark side of the diagram ( for example, if you have a ball and you grab it with the logo facing you, when you rotate the ball, the logo will be in the other side, and you will not be able to see the logo).
Now, as the area near the axis actually does not move that much, the red square near the axis (the top red square) will be most likely getting 24 hours of light each day.
What are some questions that biologists might ask about the living things they study?
Molecular biology is asked about the living things they study
Give 8 Differences each between immunization and immunity
Anyone that answers I will mark the person as brilliant
Answer:
1- The immune system develops antibodies to the disease so that it cannot make you sick again.
2- Immunization describes the actual changes your body goes through after receiving a vaccine.
3- Immunization is the process whereby a person is made immune or resistant to an infectious disease.
4- Vaccines stimulate the body’s own immune system to protect the person against subsequent disease.
5- Immunity is the capability of multicellular organisms to resist harmful microorganisms from entering their cells.
6- Immunity is the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
7- Immunization is the action of making a person or animal immune to infection.
8- Vaccines strengthen the immune system.
ASAP You are observing proteins in a lab for an experiment. During transport, they have started to unwind and lose their shape. You notice long strands wound into alpha helices. What level of structure are the proteins in? A. Quaternary B. Primary C. Secondary D. Tertiary
Answer:
C. Secondary
Explanation:
In proteins, the structure of local segments can be arranged into three different three-dimensional formations: alpha helices (α-helix), beta sheets (β-strand) and omega loops. An alpha helix is the most common secondary protein conformation because it has low-energy and a stable arrangement. The α-helix is formed by the interaction between amino acids of every backbone N−H hydrogen bonded with the backbone C=O group of the corresponding amino acid residue in the polypeptide chain. The α-helix motif is very common in transmembrane segments of proteins that cross the lipid bilayer.
Question 17 of 25
A cactus can either have long needles (L) or short needles (1). A cactus
grower crosses two cacti. The cross is shown in the Punnett square below.
LL
LL LL
ULI
What is the phenotype ratio for this cross?
O A. One long, three short
B. Four long, zero short
O C. Two long, two short
O D. Three long, one short
PREVIOUS
Answer:
The punnet square in this question is unclear. The punnet square has been attached as an image.
Based on the punnet square, the answer is C. Two long, two short
Explanation:
This question involves a single gene coding for needle length in cactus plant. The allele for long needle (L) is dominant over the allele for short needle (l).
According to the question, two cacti were crossed with genotypes Ll and ll respectively. The following allelic combinations of gametes will be produced by each parent
Ll- L and l
ll- l and l
Using these gametes in a punnet square (as seen in the image below), four possible offsprings with genotypes: Ll and ll will be produced in a 1:1 proportion.
Ll offsprings will be phenotypically long-needled while ll offsprings will be phenotypically short-needled. Hence, two long needle offsprings and two short needle offsprings will be produced in this cross.
Which describes the four cells that are produced at the end of meiosis? identical haploid cells genetically different diploid cells genetically different haploid cells identical diploid cells
Answer:In many ways, meiosis is a lot like mitosis. The cell goes through similar stages and uses similar strategies to organize and separate chromosomes. In meiosis, however, the cell has a more complex task. It still needs to separate sister chromatids (the two halves of a duplicated chromosome), as in mitosis. But it must also separate homologous chromosomes, the similar but nonidentical chromosome pairs an organism receives from its two parents.
Explanation:Mitosis(Opens in a new window)(Opens in a new window) is used for almost all of your body’s cell division needs. It adds new cells during development and replaces old and worn-out cells throughout your life. The goal of mitosis is to produce daughter cells that are genetically identical to their mothers, with not a single chromosome more or less.
Meiosis, on the other hand, is used for just one purpose in the human body: the production of gametes—sex cells, or sperm and eggs. Its goal is to make daughter cells with exactly half as many chromosomes as the starting cell.
To put that another way, meiosis in humans is a division process that takes us from a diploid cell—one with two sets of chromosomes—to haploid cells—ones with a single set of chromosomes. In humans, the haploid cells made in meiosis are sperm and eggs. When a sperm and an egg join in fertilization, the two haploid sets of chromosomes form a complete diploid set: a new genome.
Answer:
b
Explanation:
A population of fish exhibits multiple variations in color, size and mouth structure; however, there does not appear to be any selective advantage for these traits because all individuals are allowed to breed and survive! Which of the following is most likely occurring in this fish population?
Answer:
This population of fish is undergoing the process of Genetic diversity
Explanation:
The phenomenon known as Genetic diversity is described as variation that occurs within a species or community. Individual organisms are unique owing to their genetic makeup. Ample variation within a population, or genetically diverse population, allows it to better survive various sorts of stresses from the environment, ensuring better survival of the species.
what might be reasons why galileo galilei failed to discorve a cell yet wsd the one who invented a microscope
Answer:
Galileo galilei was an astronomer not a biologist.
Explanation:
Galileo galilei failed to discover a cell yet the one who invented a microscope because the Galileo galilei was an Italian scientist who contributes in the field astronomy and mathematics. He was not interested in biology so he was not able to discover the cell in the presence of microscope. Galileo galilei made many theories about the universe and make improvements in the structure of telescope which enables him to study the universe.
Question 3 (5 points)
Which macromolecule stores the most energy, and is needed by the cell in order to
produce ATP?
Nucleic acids
Carbohydrates
O Proteins
Lipids
Answer:
carbohydrates
Explanation:
Answer:
Carbohydrates
Explanation:
Carbohydrates are compounds made primarily of carbon, hydrogen, and oxygen that store the most energy. Generally, these are known as sugars. These molecules are required for cellular respiration and ATP production. Lipids and fats store energy, but are not used in ATP production. Proteins do not store energy and instead provide the raw materials for the body to build other molecules, called amino acids.
PLEASE HELP!! Gas cloud 1 is likely to form a star. Gas cloud 2 is not. Based on this information, match the given conditions with each cloud. *options and pictures attached*
Answer:
Gas cloud 1: It spreads with a greater volume and less concentration of elements. Its temperature stays well below the 14 million Kelvin. It has hydrogen atoms that retain there electrons.
Gas cloud 2: Its volume shrinks and the density increase die to the gravity . Its temperature stays above the 14 million kelvin . Hydrogen atoms shed there electron.
Explanation:
As you already know, stars form within clouds of gas. These clouds have interstellar gases composed mainly of dust and hydrogen. When subjected to low temperatures, gases react and combine to form molecules that create clouds and continue to react until they form stars.
Cloud 1 has characteristics that show that it will form a star which are: It spreads with a greater volume and less concentration of elements, its temperature stays well below the 14 million Kelvin, it has hydrogen atoms that retain there electrons.
as we know that cloud 2 will not form stars we can say that its characteristics are: Its volume shrinks and the density increase die to the gravity , its temperature stays above the 14 million kelvin , hydrogen atoms shed there electron.
Answer: Gas cloud 1: Its volume shrinks and the density increase die to the gravity. Its temperature stays well below the 14 million Kelvin. It has hydrogen atoms that retain there electrons.
Gas cloud 2: It spreads with a greater volume and less concentration of elements. Its temperature stays above the 14 million kelvin . Hydrogen atoms shed there electron.
Explanation: I just took the test and these are the right answers
How could you use different research methods to complement each other when studying a particular process in the brain?
Answer is given below
Explanation:
The brain is a complex structure and requires different methods to be declared in order to obtain a clear illustrator. Cavalder study is a method of comparing the brain of a dead person. For example, Einstein compared the brain to the brain of ordinary people. It has been hypothesized that the proportion of glia cells in the neuron is higher in a person with a higher IQ, such as Einstein. However, it cannot be confirmed that only a specific brain is available. The study of the session helps us to identify the problem associated with defects in a particular area and eliminates the function of a specific area of the brain. For example, clots form in the frontal lobe during a stroke, which can sometimes lead to epilepsy. The disadvantage of these methods is that the brain is not active. A new method of EEG electroencephalogram that measures electrical signals if each neuron is present. It measures brain activity when the brain is active. The EEG can provide information about the normal patterns of electrical activity in the brain, and although the EEG allows the researcher to quickly observe when these changes occur in real time, the electrode measures the surface of the skull and each electrode measures brain waves from large areas to be placed on the brain. EEGs do not provide a very clear picture of brain structure. The image of the brain cannot be obtained by changing the electrode to measure the electrical signal. but there are MRI techniques to provide more specific brain images. Functional magnetic resonance imaging uses the scan method using magnetic fields to create an image of the brain in each activity field. Therefore all mixed methods can help to study the brain and related activities more deeply and effectively.Answer:
Brain is a complex structure and needs analgamation of various methods to get a clearer picture.
One method is cavalder studies where brains of dead person is compared. For instance , Einstien brain was compared with ordinary people brain. The ratio of glia cells to neuron was hypothesised to be higher in high IQ person such as Einstien. However , this cannot be ascertained as only one special brain was available.
Lession studies help us identify the problem associated with a lession in a particular area and conclude the function of specific region of brain.for example , during stroke the is clot in frontal lobe that leads to epileptic ceasure sometimes.
Drawback of these method is that brain is not active. So new method of EEG electro encephelogram which measure electrical signals if each neuron. It measures brain activity when brain is active.
the EEG can provide information about the general patterns of electrical activity within the brain, and although the EEG allows the researcher to see these changes quickly as they occur in real time, the electrodes must be placed on the surface of the skull and each electrode measures brain waves from large areas of the brain. As a result, EEGs do not provide a very clear picture of the structure of the brain. A still images of brain cannot be obtained by placing electrodes to measure electrical signal.
But MRI techniques exist to provide more specific brain images. Functional magnetic resonance imaging uses a scan method utilising magnetic field to create an image of brain in each activity area.
Thus all methods combined can help in study of brain and associated activities more profoundly and effectively.
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Question 19 (5 points)
During puberty many changes in the body begin to occur. In males, more
testosterone is produces while estrogen becomes more prevelent in females. These
changes are largely induced by which gland of the endocrine system?
Pituitary gland
Adrenal glands
Parathyroid glands
Pineal gland
Answer:
pituitary gland
Explanation:
it produces it
Answer:
Pituitary gland
Explanation:
The pituitary gland plays an important role in growth and beginning the chemical changes that accompany puberty.
A tumor cell with a mutation in Rb can divide in the absence of extracellular signals. A. If the Rb mutation is responsible for the increased cell division, is it likely that Rb is always active or always inactive
Answer:
The Rb will always stay active
Explanation:
The Rb, undergoing a mutation that promotes cell proliferation, the cells will proliferate excessively, either benignly or malignant, forming a tumor structure.
The Rb mutation is considered an irreversible process, which will generate an unlimited and excessive growth that is abnormal when compared to the other non-mutated cells.
Explain why athletes who excel at short sprints probably have fewer slow oxidative fibers in their leg muscles.
Answer:
Athletes who train short distances and explosive moments of extreme metabolic anaerobiosis have a higher percentage of fast fibers in the muscular structure of skeletal muscles, that is, in the muscles that achieve and carry out locomotion.
Some researchers also argue that men have a predisposition to have more fast fibers than women, since these are predominantly slow fibers.
Rapid muscle fibers to the leg muscle, generating more powerful contractions with less presence of oxygen and greater lactic acidification in the metabolism of the energy currency.
Explanation:
Fast and slow fibers are two different types of fibers, these are usually trained according to the histology or physiology of each athlete.
Those with the highest amount of fast fibers will train and perform better in high-power physical activities, that is, for short distances with little demand for oxygen.
what is biodiversity Which of the following shows the correct chronological order (geologically oldest to most recent) of near or total extinctions for the organisms listed?
Answer:
Biodiversity is the diversity of living beings, be they animals or plants, which together make up the totality of life on planet Earth. In other words, the term biodiversity necessarily implies a large number of different species and genres of living beings, which interrelate with each other through food chains, sharing natural habitats or even establishing more complex links. In any case, it requires that heterogeneity that implies the existence of several different living beings from each other in a given space.
Arrange the structures in the following list in the order that blood will encounter as it flows from the heart back to the heart in the cardiovascular circuit.
1. venules
2. arterioles
3. capillaries
4. elastic arteries
5. medium veins
6. large veins
7. muscular arteries
Answer:
The correct order is - 4.elastic arteries, 7.muscular arteries, 2. arterioles, 3. capillaries, 1. venules, 5. medium veins, 6.large veins
Explanation:
The cardiovascular circuit Or the pathway is the sequence of structures that takes oxygenated blood from the heart and deliver it to various parts of the body and than beings the deoxygenated blood back to the heart.
This cardiovascular circuits involves various types veins, Capillaries and arteries and heart. The correct order of the structures of order that blood will encounter as it flows from the heart back to the heart is -
4.elastic arteries, 7.muscular arteries, 2. arterioles, 3. capillaries, 1. venules, 5. medium veins, 6.large veins
How long does it take for bugs to die?
You are observing a sample of cells in the lab to determine why they did not divide properly. You notice that the chromosomes are lined up in the middle of the cell, and the spindle fibers have extended towards them, but have not attached. What could be damaged?
Answer:
The kinetochore of the chromosomes
Explanation:
What could be damaged that is hindering the spindle fibers from attaching to the chromosomes are the kinetochores of the chromosomes.
At the metaphase stage of the cell division, the chromosomes align at the equator of the cell and the spindle fibers engage each chromosome at a region known as the kinetochore.
The kinetochore is made up of complex proteins and lies around the centromere region of the chromosome. The microtubules of the spindle fibers attach to this region during the metaphase stage.
If the kinetochore is damaged, it means the spindle fiber will not be able to attach to the chromosome.
Being nervous interferes with sexual arousal. Explain why, with reference to the sympathetic and parasympathetic nervous systems.
Answer:
When one is nervous activates the sympathetic system and the irrigation towards the cardiac and muscular zone is increased, increases the arterial tension and the respiratory rate.
That is why the blood or blood volume is dispersed in these organs to be able to render efficiently in a moment of stress or flight for the human.
When we have sexual intercourse and there is sexual excitement, a large part of the blood volume goes to the reproductive organs to be able to irrigate the area and produce said excitement, if we are stressed in an alert situation, it will be harmed by the priority body to irrigate the main areas like heart and muscle.
Explanation:
It is important to clarify that the physiological stress in humans is a normal situation, thanks to the presence of cortisol and it is what keeps us active, but if it increases due to anxiety or overwork, psychological problems, etc., it will no longer be physiological due to that is in excess.
Thus, sexual arousal will also be affected by the psychological impotence generated by excess mental stress outside the vascular pattern.
how can we reuse an old biosensor with a new device, knowing that the sensor is related to the mentioned device.
Please ❤️
Answer:
A biosensor is a analytical device used for the detection of the chemicals.
Explanation:
Biosensor is an analytical device that is used to detect the chemical substances. It combines the biological substances with the physiological substance that detect it properly.
The biosensor are the chemical detector that used receptors, the transducer and the electronic system that includes the signal amplifier.
The electronics and transducer combined and produce the CMOS that is microsensor system. This receptor is called a bioreceptor.
The main aim to produce the biosensor is make an easy and quick , convenient testing. So that it can measured sample that was procured at the point
Which form of bacteria is matched correctly to its description? spirillum—has a rod shape and exists in chains or alone coccus—can cause MRSA and has a round shape coccus—can cause acne and has a spiral shape bacillus—has a spherical shape and can form clusters
Answer:
coccus—can cause MRSA and has a round shape
The form of bacteria is matched correctly to its description is coccus, which can cause MRSA and has a round shape.
What are the forms of bacteria?Bacteria is a microscopic living organism that can exist as free-living or in colonies.
Based on shape, bacteria can exist in the following forms:
spherical shaped (cocci)rod shaped (bacilli)spiral shaped (spirilla)comma shaped (vibrios) corkscrew (spirochaetes)Therefore, the form of bacteria is matched correctly to its description is coccus, which can cause MRSA and has a round shape.
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how many polynucleotide chains does a DNA molecule have
two
A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits.
2. Research how antibiotics affect bacterial cells. Which cell structure(s) are typically targeted? Based on this information do you think human cells are affected by the antibiotics? Include references to information sources used.
Answer:antibiotics produce antigens that kills bacteria....our WBC's also protect our body by producing antigens
Explanation:
No its limited use for human is good bcz its their body need over use affect kidneys
Answer:
press dat crown for meh
Explanation:
Who first identified nucleic acids, and where were they discovered?
A Friedrich Meischer discovered nucleic acids in blood cells.
B Phoebus Levine discovered nucleic acids in plant cells.
C James Watson and Francis Crick discovered nucleic acids in DNA.
D Gerardus Johannes Mulder discovered nucleic acids in bacterial cells.
Answer:
A
Explanation:
He discovered them in 1868. I hope this helps:)
Friedrich Meischer, a Swiss physician and biologist, is credited with the discovery of nucleic acids. The correct option is A.
What is Nucleic acid?
Nucleic acids are complex macromolecules that play a fundamental role in storing, transmitting, and expressing genetic information in living organisms. They are essential for the inheritance of traits and the functioning of cells. There are two main types of nucleic acids: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).In the late 1860s, Meischer was conducting experiments on white blood cells (leukocytes) and noticed that these cells contained a substance that was different from proteins.
He isolated this substance, which he called "nuclein," from the nuclei of white blood cells.
Meischer's discovery laid the foundation for our understanding of nucleic acids.
Thus, the correct option is A.
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Which three organs are part of the digestive tract? salivary glands, gall bladder, appendix esophagus, stomach, small intestine teeth, tongue, mouth esophagus, liver, pancreas?
Answer:
The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
Writers note:
Who ever gave you that question is a horrible being. The digestive tract is quite complex. I hope I helped in some way; sorry if I confused you.
What are ways that humans can lower bio diversity as they use the environment
Answer:
1. Reduce the misuse of land.
2. Reduce climate change.
3. Reduce invasive species.
You often see high-pressure areas and low-pressure areas indicated on weather
maps. Which statement best describes the wind direction with respect to these high-
and low-pressure areas?
Wind will blow towards low-pressure areas and away from high-pressure areas.