What best describes the difference between anaerobic and aerobic respiration? o Only aerobic respiration breaks down carbon dioxide.
Only aerobic respiration uses oxygen as a reactant.
O Only aerobic respiration occurs in humans.
o Only anaerobic respiration produces CO2.

Aerobic processes in cellular respiration can only occur if oxygen is present.

Explanation:

i believe the answer would be b. hope it : )

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms