Explanation:
i think ATP energy molecules .
Answer:
The answer is C - studying one chimpanzee for several days.
Explanation:
The correct answer is helper T cells.
<span>The helper T cells are one of the main cells of the adaptive immune system. Their role is to help the activity of other immune cells by releasing T cell cytokines and they are required for almost all adaptive immune responses. The helper T cells activate B cells to secrete antibodies, stimulate macrophages to destroy ingested pathogens, and help in activation of cytotoxic T cells to kill infected target cells.</span>
Answer:
Theodor Schwann is a german scientists from rhe 1800s
