It is shaped specifically for a messenger molecule to fit in (like a lock and key) and when the messenger molecule binds to the receptor, it starts a reaction for a cellular process in the cell
<span>hydrosphere and atmosphere
could you add me as best answer?</span>
Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
Hey there! :D
Sexual reproduction is when two opposite genders mate to reproduce.
Asexual reproduction is when one being can have offspring.
Opposums are sexual. They have a mate and they reproduce.
I hope this helps!
~kaikers