1 what are the three structures of the cardiovascular system
The answer is B: fat gives your body energy to function, while muscle mass is used only to perform strenuous activity. This option is only correct because the statement includes the words, "muscle mass." If it was only "muscle," then it would be wrong.
The answer would be, Stop smoking, walk to school instead of driving to school, use recyclable products.
First one is D. I think because, and then, also this and that. then
Answer:
Both systems control movement.
Explanation:
