biology 22 5[1]
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22-5 Angiosperms—Flowering Plants
Chapter 22 Plant Diversity
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Fruit
• Wall of tissue surrounding an angiosperm seed
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Cotyledon
• First leaf or first pair of leaves produced by the embryo of a seed plant
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Monocot
• Angiosperm whose seeds have one cotyledon
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Dicot
• Angiosperm whose seeds have two cotyledons
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Annual
• Flowering plant that completes a life cycle within one growing season
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Biennial
• Flowering plant that completes its life cycle in two years
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Perennial
• Flowering plant that lives for more than two years
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Key Concept
• Angiosperms develop unique reproductive organs known as flowers.
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Key Concept
• Flowers contain ovaries, which surround and protect the seeds.
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Key Concept
• Monocots and dicots are named for the number of seed leaves, or cotyledons, in the plant embryo. Monocots have one seed leaf, and dicots have two.