By components do you mean organs? If so...
1. Brain - gives demands ands orders to all of the body to function properly
2. Heart - pumps blood, and keeps the organism receiving the blood alive
3. Skin - protects the tissue from UV Rays that may be harmful
A bone marrow transplant is for
She should eat more in order to replace the calories she is losing while working out.
Answer:
A
Explanation:
Short term stress pressurize you to do your best under certain deadlines