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Fill out the concept maps and answer the questions based on the reading. 1. What is a tropism? ___________________________________________________________________________________________ _________________________________________________________________ 2. Complete the concept map to show the three stimuli to which plants respond. 3. A chemical that affects how a plant grows and develops is a(n) ______________________. 4. Auxin is a plant hormone that ______________________ the rate at which a plant’s cells grow. 5. What determines the time of flowering in many plants? ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ 6. What happens to a plant during dormancy? _______________________________________________ _______________________________________________ _______________________________________________ 7. The plant in the figure is responding to what two types of stimulus? ______________________________________ ______________________________________________ 8. What is the growth response shown in the figure called? ______________________________________________ ______________________________________________
