6.the 100 coin tosses are repeated. the results are added to the results of the first 100 coin tosses.
a. how many times do you expect to get heads out of the 200 tosses?
b. how many times do you expect to get tails out of the 200 tosses?

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