Stimulus Definition Biology Example

For instance hunger motivates animals to seek food predators stimulate prey to run away or hide and falling temperatures encourage creatures to seek shelter or find warmth in other ways. In biology a stimulus is a change in an organism s surroundings that causes the organism to change its behavior in order to make the environment more satisfactory. The temperature is the stimulus and the individual then protects themselves.

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An example of a stimulus is an individual placing a hand on a hot surface.

Stimulus definition biology example. Usually a stimulus is a product of change in an energy source or force such as light or sound or heat. A biologic stimulus is any external change in the environment that can be detected by an organism. As humans we detect and respond to stimulus in order to survive.

The ability to respond to a stimulus is called irritability and is a necessary condition for life. 3 that which can evoke a response or has an influence on a system to. For example if you walk.

Examples from the corpus stimulus table 5 shows the results of a t test between a stimulus and the value 0 5. 2 physiology that which influences or causes a temporary increase of physiological activity or response in the whole organism or in any of its parts. 1 physiology a detectable change in the internal or external environment.

Something that makes someone or something move or react at this age the infant begins to react more to visual stimuli. The surge in new housing construction ought to provide a stimulus to the economy.

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