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Lesson 5

chapter 3

TermDefinition
Visit 3 stimuli that produces plant response touch, gravity, light
Give an example of positive and negative tropism if a plant grows toward the stimulus that is positive tropism If a plant grows away from the stimulus that is negative tropism
Describe what triggers a plant to flower day length, plant maturity, temperature
Why is dormancy important allows plants to survive harsh environmental conditions like extreme cold, heat, or drought by entering a state of reduced metabolic activity
Tropism The response of a plant toward or away from a stimulus
Hormone A chemical that affects growth and development
Photoperiodism A plants response to seasonal changes in the length of night and day
Critical night length The numbers of hours of darkness that determines whether or not a plant will flower
Dormancy A period of time when an organism’s growth or activity stops
Created by: user-1983995
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