Term
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Definition
| Substance that is produced in one part of an organism and affects another part of the same individual. |
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Term
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Definition
| Cell that has a receptor for a particular hormone. |
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Term
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Definition
| Tendency of a plant to grow towards the sun. |
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Term
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Definition
| Substance produced in the tip of a seedling that stimulates cell elongation. |
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Term
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Definition
| Response to a plant to the force of gravity. |
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Term
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Definition
| Meristematic area on the side of a stem that gives rise to side branches. |
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Term
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Definition
| Phenomenon in which the closer a bud is to the stem's tip, the more it growth is inhibited. |
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Term
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Definition
| Compound that is toxic to plants. |
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Term
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Definition
| Plant hormone produced in growing roots and in developing fruits and seeds. |
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Term
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Definition
| Growth-promoting substance produced by plants. |
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Term
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Definition
| Plant hormone that stimulates fruits to ripen. |
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Term
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Definition
| Response of a plant to an external stimulus. |
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Term
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Definition
| Response of plants to touch. |
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Term
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Definition
| Plant that flowers when daylight is short. |
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Term
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Definition
| Plant that flowers when days are long. |
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Term
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Definition
| Response of plants to periods of light and darkness. |
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Term
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Definition
| Plant pigment responsible for photo-periodism. |
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Term
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Definition
| Period during which an organism's growth and activity decrease or stop |
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Term
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Definition
| Layer of cells at the petiole that seals off a leaf from the vascular system. |
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Term
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Definition
| Plant that lives in the desert biome. |
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