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| Cells in seedless plants that grow into new organisms. |
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| One of the hairlike fibers that anchor a moss to the soil and take in water from the soil. |
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| The underground stem of a fern. |
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| The production of a new organism from only one cell. |
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| The joining of a sperm cell with an egg cell to make one new cell, a fertilized egg. |
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| The production of a new organism from a female sex cell and a male sex cell. |
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| An undeveloped plant with stored food sealed in a protective covering. |
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| A seed plant that produces flowers. |
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| A seed plant that does not produce flowers. |
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| Any of a group of gymnosperms that produce seeds in cones and have needlelike leaves. |
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| A tiny leaflike structure, also called a seedleaf, inside the seed of an angiosperm. |
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| An angiosperm with one cotyledon in each seed. |
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| An angiosperm with two cotyledons in each seed. |
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| A structure containing egg cells. |
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| The transfer of a pollen grain to the egg-producing part of a plant. |
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| The immature plant inside a seed. |
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| The outer covering of a seed. |
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| The ripened ovary of a flowering seed plant. |
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| What a living thing does as a result of a stimulus. |
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| Something in the environment that causes a living thing to react. |
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Definition
| A growth response of a plant toward or away from a stimulus. |
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| A characteristic that enables a living thing to survive in its environment. |
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