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6 Cards in this Set
- Front
- Back
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Hormone
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A substance produced in one part of an organism that has an effect in another part of the organism.
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Target cell/ hormone
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The portion of an organism that is affected by a particular hormone.
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Auxins
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Plant hormones that stimulate growth towards a source of light.
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Gravitropism
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The tendency of a plant to grow in response to the force of gravity.
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Tropism
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When plants change their patterns and directions of growth in response to environmental stimuli.
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Thimotrophism
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The response of plants to touch.
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