Answer:
D
Explanation:
I just took this quiz so you are welcome
Answer:
except natural killer cells.
Explanation:
The Helper T cells produce cytotoxic T cells and help B cells, but not natural killer cells
The best answer to the question above would be the first statement. Cardiorespiratory endurance affects physical fitness in such a way that it increases the efficiency with which the body delivers oxygen and nutrients to its cells.
Yy.yy is your answer ^-^
Hope am right. Good Luck!