Food is a source of (a) kinetic energy (b) chemical energy (c ) mechanical energy
subject science

chemical energy

Explanation:

b) chemical energy

as per opinion .

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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