Which endocrine gland controls the secretions of the pituitary gland?

a. thyroid
b. adrenal glands
c. pancreas
d. hypothalamus

Which best describes the scientific process

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.