6th Grade From Bacteria to Plants Chapter 5 Sec. 2,4,&5
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| gymnosperm | a seed plant that produces seeds that are not enclosed by a protective fruit
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| cones | reproductive structures covered with scales
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| ovule | a structure that contains an egg cell
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| tropism | a plant's growth response toward or away from a stimulus
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| hormone | a chemical that affects how the plant grows and develops
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| auxin | a plant chemical that speeds up the rate at which a plant's cells grow
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| photoperiodism | a plant's response to seasonal changes in length of night and day
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| dormancy | a period when an organism's growth or activity stops
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| annuals | flowering plants that complete a life cycle within one growing season
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| biennials | angiosperms that complete their life cycle in two years
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| perennials | flowering plants that live for more than two years
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| precision farming | a farming method in which farmers fine-tune the amount of water and fertilizer they use to the requirements of a specific field
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| hydroponics | a farming method in which plants are grown in solutions of nutrients instead of in soil.
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| genetic engineering | when scientists alter an organism's genetic material to produce an organism with qualities that people find useful
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Created by:
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