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Plant responses grow

Ch 3 L5

TermDefinition
Hormone A chemical that affects how the plant grows/develops
Tropism A plants growth and response toward or away from from a stimulus
Photoperiodism A plant's response to seasonal change in length
Critical night length The number of hours of darkness that determines whether or not a plant will bloom
Dormancy A period when an organism’s growth or activity stops
Three plant stimuli Light, touch, gravity
Ex. Of pos. And neg. Tropism Positive: Glories, sweet peas, grapes Negative: stems
What triggers a plant to flower Environmental cues and internal processes.
Created by: user-1918072
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