Explanation:
Cuando los niveles de testosterona están bajos, la hormona liberadora de gonadotrofina (GnRH) es liberada por el hipotálamo que a su vez estimula la glándula pituitaria para liberar LH. Esta última hormona estimula los testículos para sintetizar la testosterona.
Answer: hormona Folículo-estimulante (FSH) y hormonas luteinizing (LH) - estas hormonas se conocen colectivamente como gonadotropinas, que estimulan el ovario para liberar el estrógeno y progesterona y los testículos para liberar la testosterona
Explanation:
How the structure of DNA determines the structure of proteins?
Answer:
DNA carries the genetic information for making proteins. ... The base sequence determines amino acid sequence in protein. Messenger RNA (mRNA) is a molecule which carries a copy of the code from the DNA, in the nucleus, to a ribosome, where the protein is assembled from amino acids.
Explanation:
(meow) <3
The special molecule which is able to store and recover information about genetic traits is
The inner planets are _____ because of their closeness to the sun
Answer:
The inner planets, or terrestrial planets, are the four planets closest to the Sun: Mercury, Venus, Earth, and Mars. Figure below shows the relative sizes of these four inner planets.
Explanation:
thank me later
17. Why is learning theory valuable for a dog trainer?
O A. A dog trainer can use the principles, knowing they've been tested under
experimental conditions.
O B. It allows the trainer to understand the dog from an anthropomorphic point of view.
O C. It provides a way for trainers to quantify behavior.
O D. It assures that all trainers approach training from the same perspective.
Answer:
a
Explanation:
6-48 In somatic cells, if a base is mismatched in one new daughter strand during DNA replication, and is not repaired, what fraction of the DNA duplexes will have a permanent change in the DNA sequence after the second round of DNA replication
Answer:
1/4
Explanation:
DNA replication is semi-conservative, which means that during this process one DNA strand will be from the original DNA template, whereas the other DNA strand will be newly synthesized. In the first round of DNA replication, daughter cells receive a DNA molecule containing one original DNA strand and one newly-synthesized DNA strand (in this case, one of these daughter cells will contain a mismatch). If the mismatch is not repaired, then in the second round of replication the DNA molecule containing the mismatch would separate during replication, and the DNA strand containing the erroneous nucleotide will serve as a template for the synthesis of a new DNA molecule, thereby producing a permanent mutation.
China is experiencing excessive air pollution due to the growing population’s increased use of fossil fuels. Which of the following changes is a consequence of air pollution?
A) Increased amount of sunlight.
B) Improved plant growth.
C) Widespread respiratory illness.
D) Decreased amount of acid rain.
The rate of illness among individuals who live along the coast of the Gulf of Mexico was compared with that of the general population of a state. This type of experimental design is called a(n) O A. clinical trial B. geographical cohort study O c. C. age cohort study O D. in vitro observation
Answer:
The correct option is B.
Explanation:
A cohort study can be used in medicine to draw comparisons between a group with similar characteristics and a much larger group where the initial group is drawn from. The basis of comparison usually defines the type of cohort study been discussed. The question compared individuals from a location as against those from a larger surrounding, thus this type of cohort study can be referred to as a geographical cohort study.
NOTE: It isn't a clinical trial as none of the two compared groups was given any form of treatment or dose.
Answer:
Geographical cohort study
Explanation:
just got the answer correct
Wolves are predators of deer. What is most likely to happen to the deer population if the wolf population increased?
stay the same
increase
decrease
become extinct
Answer:holy
Explanation:
Hoky
What do populations living at high elevations have to adapt to?
A) lower ultraviolet light intensity.
B) higher average temperatures.
C) lower oxygen levels.
D) higher heart rates among children.
Answer:
c lower oxygen levels
Explanation:
the higher up the person is the closer to the atmosphere so there is less oxygen
The populations living at high elevations have to adapt to lower oxygen levels because at the sea level they at high altitude, there is less oxygen in the air that we breathe. This results that all of the blood from all areas of the lungs, is proportionally short on hypoxic.
What is hypoxia?
Hypoxia is refer to as the condition of the body in which the tissues are starved of oxygen. In its extreme form, where oxygen is entirely absent, the condition is known as anoxia.
The pressure on the body is about the same as ten meters of sea water pressing down on person body all the time. At sea level, air is compressible, then the weight of all that air at height compresses the air around us, making it denser. As the we go up a mountain, the air becomes less compressed and becomes thinner.
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Carbonic anhydrase is an enzyme found in the cytoplasm of a cell. You genetically modified the gene which produces the mRNA for carbonic anhydrase to now include a signal sequence. What will happen when carbonic anhydrase initially binds to a ribosome
Answer:
Explanation:
Carbonic anhydrase modification is a promising strategy for improving the potency and stability of carbonic anhydrase, which is used to expedite CO2 uptake from flue gases. Carbonic anhydrase can be genetically engineered to increase CO2 conversion, absorption of CO2 from a gaseous state into bioactive compounds, and mineral synthesis.
When carbonic anhydrase attaches to a ribosome, the carbonic anhydrase will now be synthesized at first by the free ribosome, after which the ribosome will become a bound ribosome and the protein will be present in the rough Endoplasmic reticulum when the synthesis is complete.
In this case, when carbonic anhydrase initially binds to a ribosome - Carbonic anhydrase initially will be synthesized by free ribosomes, but then these ribosomes then will become bound ribosomes and the protein will be in the rough ER when synthesis is complete
Carbonic anhydrase is an enzyme that helps the rapid conversion to carbonic acids from carbon dioxide and water with protons and bicarbonate ions.
Classified as a metalloenzymeThe modification in the carbonic anhydrase enhances the potency and stability of the enzyme.It can be modified to increase CO2 conversion, absorption of CO2 from a gaseous state into bioactive compounds, and mineral synthesis.Thus, In the case of carbonic anhydrase bound to a ribosome, at first, the carbonic anhydrase will be synthesized by the free ribosome and later the ribosome will become a bound ribosome and the protein will be present in the rough Endoplasmic reticulum once the synthesis process completes.
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Can someone explain what this text means?
Encasing the cell is a membrane with special gates, channels and pumps that let in or
force out selected molecules.
Answer:
The text is explaining a cell membrane.
Explanation:
A cell membrane is made up of a phospholipid bilayer that acts as a kind of "skin" for the cell. The membrane helps the cell maintain homeostasis and filter out harmful particles. Elements like oxygen are allowed to pass through via protein channels, which act as gates. Does this answer your question?
Answer: It contains DNA, that's what is in the nuculus.
Explanation:
plant reproduction requires the presence of auxins, as well as a large amount of sugar for energy. which two main plant tissues work together to release sugar and carry hormones so that reproduction can take place?
Answer:
The two main plant tissue that works together to release sugar and carry hormones so that reproduction can take place are: The ground and the vascular tissue.
Explanation:
The two main plant tissues that work together to release sugar and carry hormones so that reproduction can take place are Xylem and phloem.
What do you mean by Hormones?Hormones may be defined as a chemical delivered by endocrine glands and discharged into the blood and fascinated to a distantly located target organ.
Xylem is responsible for the transportation of water from the ground to the stem via roots, while phloem, the vascular tissue responsible for the transportation of dissolved sugar from the leaves to the other parts of the plants.
Therefore, it is well described above.
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What is a sound waves
what are sound waves* but anyways sound waves are sounds that travel through waves.
example: music travels out of a device into our ear.
Of the following individuals, who most likely perform a site layout? A. Contractor B. Surveyor C. Architect D. Owner
Answer:
B
Explanation:
A surveyor surveys the land around them depending on the thing they need to survey for
Plants use the proton electrochemical gradient across the vacuole membrane to power the accumulation of salts and sugars in the organelle. This accumulation creates hypertonic conditions in the vacuole. Why does this not result in the plant cell swelling and bursting?
Answer:
Due to movement of water to the outside environment.
Explanation:
This hypertonic solution is not result in the plant cell swelling and bursting because hypertonic causes shrinkage of cell instead of swelling. Swelling of cell occurs when the cell experiences hypotonic solution due to presence of less amount of solutes inside the cell. In hypertonic solution, there is less amount of water in the solution as compared to the cell so the water in the cell moves towards outside of the cell causes shrinkage of the cell.
8. Farmer Tom soon wanted to start breeding his plants so that they are resistant to disease while producing
more fruit per plant. Which plants should the farmer cross to get the desired (wanted) combination of
traits?
Plant Variety
Fast growing
Resistant to
a. 1 and 2
b. 2 and 4
C. 1 and 3
d. 3 and 4
Answer:
A) 1 and 2
Explanation:
14. Which graph illustrates the expected change in the finch population if the environment
changes to favor small beaks?
Answer:
I think that it would be C because it shows how they started acepting and everything like that
Explanation:
The graph that shows the expected change in the finch population if the environment changes to favor small beaks is shown by graph C.
What is adaptation?The term adaptation has to do with the fact that there are changes in an organism in order to fit into its habitat whenever changes occur in the habitat.
As such, the graph that shows the expected change in the finch population if the environment changes to favor small beaks is shown by graph C. The middle point shows the point of adaptation between the two types of beaks.
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Which statement best describes evolution in a population?
Answer:
D.
Explanation:
we learned about this in living environment! for example: humans used to have tails but the humans without tails offspringed with the ones with tails causing the genetics to take over making different traits appear in offspring. Therefor, the answer is D.
Answer:
D
Explanation:
MY
A bicycle tire pump has a piston with area 0.38 in. If a person exerts a force of 29 lb on the piston while inflating a tire, what pressure does this
produce.on the air in the pump?
.
Answer:
OMGGGG WANNA WORK ON THIS TOGETHER I NEED THIS ONE TOOOOOO
PLEASE HELP ASAP!! How neurotransmitters carry nerve impulses across the synaptic cleft
Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. Neurotransmitters bind to the membrane of the dendrite. The binding allows the nerve impulse to travel through the receiving neuron
Another way of thinking is
Neurons talk to each other across synapses. When an action potential reaches the presynaptic terminal, it causes neurotransmitter to be released from the neuron into the synaptic cleft, a 20–40nm gap between the presynaptic axon terminal and the postsynaptic dendrite (often a spine)
Hope this helps =)
Explanation: Neurotransmitters like to travel across the synapse between the axon and the dendrite of the next neuron. They then attach to the membrane of the dendrite. This connection makes it possible for the nerve impulse to travel through the receiving neuron.
The Food and Drug Administration has legal oversight over most food products and permits some health claims on food labels. The claims that are allowed at this time describe links between a few dietary practices and health outcomes. Drag the dietary practice to its appropriate FDA-permissible health claim.
Fatty acids from ols present in fish Diet adequate in synthetic form of folate Diot rich in fiber Diot low in sodium and high in potassium Reduced risk of neural tube Reduced risk of hypertension Reduced risk of defects and stroko cardiovascular disease Roduced risk of some types of cancer
Answer:
Reduced risk of neural tube defects- diet adequate in synthetic form of folate Reduced risk of hypertension and stroke- diet low in sodium and high in potassium Reduced risk of cardiovascular disease- fatty acids from oils present in fish Reduced risk of some types of cancer- diet rich in fiberExplanation:
As you may already know, the adequate intake of certain nutrients is very beneficial to our body and to improve and maintain our health. That's because these nutrients act in the construction of essential molecules to keep our body functioning in a healthy and adequate way. Among the numerous nutrients necessary for our health, we can mention that the adequate intake of folate has the ability to reduce the creation of possible defects in the neural tube, while a diet rich in potassium can reduce the risks of hypertension, especially if accompanied by a low sodium diet. Following this same reasoning, a diet rich in fiber can reduce the risk of cancer, in addition to promoting good bowel function. Last but not least, a diet rich in fatty acids from fish can reduce cardiovascular disease.
What will the new mRNA strand look like if the DNA strand reads ATT- ACG
Answer:
UAA-UGC
Explanation:
remember in RNA there is no thymine instead there is uracil so A always pairs with U and C always pairs with G.you can also remember it as Apple Under and Car Garage. :)
A boxer has been jumping rope for an hour. His leg muscles are burning and he feels weak. Which of the following most likely explains the burning he feels in his muscles? A. Lactate buildup B. Aerobic respiration C. High oxygen levels D. Ethanol buildup
Answer:The answer is Lactate buildup
Explanation:
An enlarged right ventricle both increases oxygen intake and the risk of pulmonary hypertension. How can natural selection
result in an adaption that produces both positive and negative effects?
A) The positive effects appear after reproductive age in certain environments.
B) The positive effects outweigh the negative effects in certain environments.
C) The negative effects appear later in life in certain environments.
D) The negative effects appear before reproductive age in certain environments.
Answer: B
Explanation: I took the quiz on my own and got a 100%
The positive effects outweigh the negative effects in certain environments. Therefore, option (B) is correct.
What is natural selection?In certain environments, an enlarged right ventricle can be advantageous for increasing oxygen intake, such as at high altitudes where there is less oxygen in the air. However, in the same environment or in other environments, an enlarged right ventricle can increase the risk of pulmonary hypertension, which can lead to heart failure.
Natural selection can result in an adaptation that produces both positive and negative effects if the positive effects outweigh the negative effects in certain environments. This can result in the adaptation being favored by natural selection and becoming more common in the population. Over time, this can lead to the adaptation becoming a fixed trait in the population.
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Water heats up and cools down slower than land due to a higher _______ _______
The number of ducks in a pond is equal to the square root of the number of fish, and the number of turtles is equal to the cube root of the number of fish. The number of fish in the pond is more than 1 but less than 100. There are no fractional or negative numbers of ducks, fish, or turtles.
Answer:
There are 64 fish, 8 ducks and 4 turtles.
Explanation:
From the question, there can be from 2 to 99 fish in the pond. However, there cannot be fractions in the number of fish, ducks or turtles. Hence, the number of fish must have both of a perfect square and perfect cube. The perfect squares from 2 to 99 are 4, 9, 16, 25, 36, 49, 64 and 81. The perfect cubes from 2 to 99 are 8, 27 and 64. Since only 64 fits both criteria, the number of fish is 64. The number of ducks is the square root of number of fish, which is the square root of 64. The square root of 64 can be either positive 8 or negative 8. However, there cannot be negative numbers, so there are 8 ducks in total. The number of turtles is the cube root of the number of fish, which is the cube root of 64 and it is 4.
A scientist is trying to determine whether a newly observed phenomenon can be described as a wave. Which of the following questions would the scientist want to ask about the phenomenon?
A.
Can you see it?
B.
Does it transfer energy?
C.
Is it solid?
D.
How quickly does it travel?
Answer:
A. Can you see it?
In the 1970s, the U.S. government passed laws to protect the water supply.
Which of the following best describes something these laws were intended to
do?
A. Regulate the amount of pollution industries and cities are allowed
to produce
B. Regulate the amount of water U.S. households are allowed to use
each year
C. Regulate the amount of pollution U.S. households are allowed to
produce
D. Regulate the amount of water that can be pumped from aquifers
for irrigation
A process that would result in the movement of these molecules out of the cell requires the use of ?
Explanation:
i think ATP energy molecules .
Manatees and seals both share some phenotypic similarities that are adaptations to an aquatic environment. However, seals evolved from a bearlike carnivore and manatees evolved from a hoofed mammal. This example shows that __________.
a. evolution is not always unidirectional.
b. evolution can occur rapidly for one species while the other species stays relatively unchanged.
c. similarity is a good predictor of how long it has been since two species shared a common ancestor.
d. evolution is not always divergent.
They are about as different as a leopard and a cow.
Meaning both are mammals of roughly similar size, and sharing a vaguely similar habitat. That’s the end of similarities.
Seals are carnivorous and manatees are plant eaters, and taxonomically they are in different orders. Seals spend much of the time on land, while manatees are completely aquatic. Seals have thick layer of fat and are adapted to Arctic water, while manatees, despite their roly-poly appearance, have almost no fat and do not handle cold water well at all. Here is the closest a manatee ever gets to an iceberg.
Manatees and seals both share some phenotypic similarities that are adaptations to an aquatic environment. However, seals evolved from a bearlike carnivore and manatees evolved from a hoofed mammal. This example shows that Evolution is not always divergent.