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AP Biology - Unit 11 Plants

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Question
Answer
Desiccation   Drying out  
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Cuticle of plants   Waxy covering on aerial parts that reduces desiccation.  
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Vascular system   Consists of xylem and phloem. They provide channels for the transport of water and nutrients  
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Xylem   Vascular tissue specialized for water transport.  
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Phloem   Vascular tissue specialized for sugar transport.  
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Ovary   In plants, the protective structure that holds the ovules and surrounds the angiosperm seed; after fertilization, develops into a fruit.  
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Deciduous   Shedding the leaves annually (like trees to minimize water loss in dormant season).  
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In primitive plant divisions   Flagellated sperm need water to swim to the eggs.  
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In advanced plant divisions   Sperm are adapted for delivery by wind and pollen.  
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In Gymnosperms and Angiosperms, the sperm is   packaged as pollen.  
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Gametophtes   Gamete-producing stage in the life cycle of a plant  
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Gamete   A haploid sex cell.  
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