Question

What is a stimulus? Illustrate with an example.

Answer 1

Stimulus: any change in an organism's environment that causes the organism to react. It is a fancy way of saying “cause”. Example: An animal is cold so it moves into the sun.

Answer 2

Explanation:

stimulus is a change in the environment that excites organism to respond to it. receptors of sense organs respond to stimulus and send impulse to central nervous system though sensory neurones.ex - an animal is cold so it moves into sun.