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leonid [27]
1 year ago
11

Explain why it makes sense that the levels of estrogen and progesterone are low in blood of a female during menstruation

Biology
1 answer:
Art [367]1 year ago
5 0

Answer:

At the beginning of the follicular phase, the lining of the uterus (endometrium) is thick with fluids and nutrients designed to nourish an embryo. If no egg has been fertilized, estrogen and progesterone levels are low. As a result, the top layers of the endometrium are shed, and menstrual bleeding occurs.

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Epinephrine, insulin, and auxins are all examples of that help produce feedback.
JulsSmile [24]

Answer: cofactors.

Explanation:

Epinephrine, insulin and auxins are cofactors.

Cofactors are non protein substance which activate enzymes activity by increasing the rate of chemical reaction of enzymes. They are organic molecules and they assist in enzyme activity. They exist in performing some reactions the enzymes cannot perform alone.

For example, insulin activate enzyme hexokinase which phosphorylate glucose.

8 0
3 years ago
Read 2 more answers
Genes determine the _________of an individual.
Fiesta28 [93]

Answer:Traits are determined by genes, and also they are determined by the interaction with the environment with genes. And remember that genes are the messages in our DNA that define individual characteristics. So the trait is the manifestation of the product of a gene that is coded for by the DNA.

Explanation:

3 0
2 years ago
Scrivi tutti gli isomeri dell’esano
MaRussiya [10]

Answer: i cinque isomeri possibili per l'esano sono n-esano, 2-metil pentano, 3-metil pentano, 2, 3-dimetilbutano e 2, 2-dimetilbutano. - 2-metil pentano è anche chiamato isoesano. - 2, 2-dimetil butano chiamato anche Neoesano.

Explanation:

7 0
2 years ago
Which of the following describes the polarity of water?
arlik [135]
B is correct
D is appealing but the electrons spend more time around the oxygen than the hydrogen
3 0
2 years ago
3. The time between the end of ventricular systole to the beginning of atrial systole.
amid [387]

Answer:

The time between the end of ventricular systole to the beginning of atrial systole is 100 ms or 0.1 seconds.

Explanation:

Ventricular systole is the removal of blood from the heart by pumping through aorta and pulmonary vein. Both aorta and pulmonary vein receive the blood from the heart. Aorta receives oxygenated blood and pulmonary vein receive deoxygenated blood, while atrial systole is the addition of blood into the ventricular from vena cava and pulmonary artery due to contraction of heart. This process occurs in 100 ms.

6 0
3 years ago
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