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9.24: Plant Responses

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

auxin

Plant growth hormone that controls phototropism.

dormant

Condition where plants suspend growth and development in order to survive the extreme cold and dryness of winter.

geotropism

Growing toward gravity response of a plant.

hormone

A chemical messenger molecule.

phototropism

The growing toward a light source by a plant.

tropism

Turning by an organism or part of an organism toward or away from an environmental stimulus.

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Difficulty Level:
At Grade
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Date Created:
Feb 24, 2012
Last Modified:
Nov 22, 2016
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