Answer:E. Down-regulation
Explanation:Cells typically up or down regulate depending on the concentration of a hormone levels. When there is a excessive concentration of a hormone in the blood stream, the cell decreases the number of receptors reducing the interaction with that hormone, Also, when there is excessive hormone reduction, the target cells activate to increase their number of receptors.
Down regulation occurs by the the deactivating or degrading of target cells to reduce the number of receptors due to their sensitivity to a particular excess hormone.
Answer:
A. improve the conditions of people in other countries.
If
an animal's heart has three chambers and it lays amniotic eggs, it should be a reptile
(e.g. pythons and monitor lizards). However, through amniotic egg, a protective
adaptive sac inside the egg, it os useful for reptiles, amphibians, birds and
mammals.
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Answer:
so what's the question asking? does she want to know how much? or the necessary items?
