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CH3L5

Notecards

TermDefinition
Tropism The response of as plant toward or away gap, a stimuIis
Hormone Chemical that effects growth
Photoperiodism A plants response toward seasonal changes in the length of night and day.
Critical night length The number of hours of darkness that determines whether the plant will flower or not.
Dormancy A period of time the organism’s growths stops
The three stimuli that produce plant response Touch, light, and gravity
give an example of positive and negative tropism Positive: growth toward stimuli Negative:growth away from stimuli
What triggers a plant to flower The amount of light and darkness
Created by: user-1915018
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