Biology is the science that studies living organisms and their interactions with each other and their environment. a. True
b. False

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

you need more balloons

the answer u all are looking for is 4000000000000000000000 million years.