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Homeostasis

7.13AB EXTERNAL/NTERNAL STIMULI & MAINTAINING HOMEOSTASIS

TermDefinition
STIMULUS Action or condition that provokes a response.
RESPONSE Change in a system resulting from a stimulus.
HOMEOSTASIS Tendency of an organism or cell to maintain a balanced state so as to maintain health and function.
PATHOGEN Microorganism or virus that can cause disease.
FIGHT-OR-FLIGHT Short-term physiological changes in response to stress that prepare the body for intense activity to avoid harm.
TROPISM Turning or bending movement of living organisms toward or away from an external stimulus, such as light, gravity, touch, water, etc.
PHOTOTROPISM Response of a plant to grow toward or away from light.
GRAVITROPISM/ GEOTROPISM Plant’s growth in response to the force exerted upon it by gravity.