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2
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The orientation of a plant
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3
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A plant hormone that causes the elongation of cells in shoots and is involved in regulating plant growth
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4
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The turning of all or part of an organism in a particular direction in response to an external stimulus.
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5
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The growth of the parts of plants with respect to the force of gravity
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6
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The part of a plant that attaches it to the ground or to a support
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7
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A group of plant hormones that stimulate stem elongation.
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