Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| sporophyte | The stage in the life cycle of a plant in which the plant produces spores.
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| gametophyte | The stage in the life cycle of a plant in which the plant produces gametes, or sex cells.
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| annual | A flowering plant that completes its life cycle in one growing season.
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| biennial | A flowering plant that completes its life cycle in two years.
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| perennial | A flowering plant that lives for more than two years.
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| fertilization | The process in sexual reproduction in which an egg cell and a sperm cell join to form a new cell.
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| zygote | A fertilized egg, produced by the joining of a sperm cell and an egg cell.
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| cone | The reproductive structure of a gymnosperm.
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| ovule | A plant structure in seed plants that produce the female gametophyte; contains an egg cell.
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| fruit | The ripened ovary and other structures of an angiosperm that enclose one or more seeds.
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| stigma | The sticky tip of the pistil.
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| pistil | The female reproductive parts of a flower. Contains the stigma, style, and ovary.
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| sepal | A leaf-like structure that encloses and protects the bud of a flower.
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| anther | The sticky part of the stamen that makes pollen.
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| filament | The structure that holds up the anther. (A part of the male reproductive system.)
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| petal | A colorful, leaf-like structure of some flowers.
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| ovary | A flower structure that encloses and protects ovules and seeds as they develop.
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| stamen | The male reproductive part of a flower. (Contains the anther and the filament.)
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| style | The structure that connects the stigma to the ovary.
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| tropism | The response of a plant toward or away from a stimulus.
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| hormone | A chemical that affects growth and development.
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| auxin | A plant hormone that speeds up the rate at which a plant's cells grow and controls a plant's response to light.
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| photoperiodism | A plant's response to seasonal changes in the length of night and day.
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| dormancy | A period of time when an organism's growth or activity stops.
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