It respond to stimuli, by its own life.
response
A positive response is when a response happens to a stimuli, and this response causes more of the stimuli to happen. A negative response is when a response happens because of a stimuli, and the response stops the continuation of the stimuli.
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response?
Yes, sensory receptors do fire action potentials in response to stimuli.
Auxins
tropism
response to stimuli
A stimulus 'stimulates' you and a response is how you respond. If you are stimulated by hot water your response is to feel hot. If you place your hand on a hot stove the heat will stimulate your skin and your response will be to remove your hand.
This condition is referred to as sensory overload or sensory deprivation, depending on whether there is an excessive amount of stimuli or an absence of stimuli causing the abnormal response.
Negative feedback is the response to changes in stimuli that reverts the change back to the normal stimuli.