There is a process that results in an ocean trench what is it?

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

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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