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Definition
| plant hormone that causes plant leaves and stems to exhibit positive phototropisms |
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Definition
| a series of chemical reactions that breaks down food molecules and releases energy |
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Definition
| green, light-trapping pigment in plant chloroplasts that is important in photosynthesis |
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Definition
| plant that doesn't require a specific photoperiod and can begin the flowering process over a range of night lengths |
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Definition
| plant that generally requires short nights to begin the flowering process |
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Term
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Definition
| a plant's response to the lengths of daylight and darkness each day |
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Term
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Definition
| process by which plants and many other producers use light energy to produce simple sugar from carbon dioxide and water and give off oxygen |
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Definition
| plant that generally requires long nights to begin the flowering process |
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Term
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Definition
| tiny openings in a plant's epidermis through which carbon dioxide, water vapor, and oxygen enter and exit |
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Term
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Definition
| positive or negative plant response to an external stimulus such as touch, light, or gravity |
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