How do predator and prey affect the competition in an ecosystem

Predator affects the competition because they eat/kill the prey of other predator.

b is dominant over the allele for the white fur.

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