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| first organisms to grow in new or disturbed areas; break down rock and build soil. |
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| haploid cells produced in the gametophyte stage of a plant that can divide by mitosis and can form structures and an entire new plant or can develope into sex cells |
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| thread like structures that anchor non vascular plants to the ground |
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| muscular digestive system structure in which earthworms grind soil and organic matter |
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| digestive system sac in which earthworms store ingested soil |
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| underground stem of a fern |
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| leaf of a fern that can grow from a rhizome |
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| bristle like structures on the outside of each body segment that helps segmented worms move |
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