What is the role of the male reproductive system? CHOOSE ALL THAT APPLY!

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

the growth of the plants is affected by the heat of the light. what is the student doing?

answer///alimentary canal/gastrointestinal tract.digestive (gi);

genetic variations are caused by mutations which are random in the population