Question

the carbon dioxide - oxygen cycle provides animals with oxygen. without oxygen, animals

a. would be able to reproduce, but not move.

b. would be able to move, but not reproduce.

c. would not be able to move or think

d. would be able to move and think

Explanation:

Oxygen is essential for cellular respiration, which provides energy (ATP) for various cellular processes. Movement (muscle contraction) and thinking (neuronal activity) both require energy from ATP. Without oxygen, cells cannot produce sufficient ATP through aerobic respiration. Reproduction also requires energy, but the key point here is that both movement and thinking are highly energy - demanding processes that would be severely impaired without oxygen.

Answer:

C. would not be able to move or think