Explain and illustrate how the long-term survival
of a species depends on resources that may be
limited from time to time.

Answer and Explanation:

When there is limitation to resurces, there are behavioural activities that organisms perform like clustering, coiling, burrowing, migration, hibernation and aestivation.

Migration is seen in many homoitherms where there is movement over long distances to avoid unfavourable climatic factors and food shortage. During cold weather, large mammals survive by hibernating. They go into deep sleep and metabolic rate falls to the minimum required for maintaining the vital activities of the cells.

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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