In which part of the cell does the first stage of cellular respiration occur? A) mitochondria
B) nucleus
C) cytoplasm
D) cell membrane

answer; (phospholipid);

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