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5 Cards in this Set
- Front
- Back
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tropism
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the growth of all or part of an organism in response to an external stimulus, such as light
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phototropism
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a change in the direction a plant grows that is caused by light
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gravitropism
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when a plant changes direction in response to gravity
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short day plants
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plants that flower in fall or winter
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long day plants
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plants that flower in spring and summer
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