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Lesson 5

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

Tropism   A plant's growth response toward or away from a stimulus  
Hormone   A chemical that affects how the plant grows and develops  
Auxin   A plant hormone that speeds up the rate at which a plant's cells grow and controls a plant's response to light  
Photoperiodism   A plant's response to seasonal changes in the length of the night and day  
Dormancy   A period when an organism's growth or activity stops  


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Created by: cwright6015