<span>The earthworm's ventral vessel acts as a pump to push blood throughout the body.</span>
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I dont know much about plants lol sorry but here is a diagram. hope it helps
The molecule will enter the cell using a channel protein.
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<em>Chromosomes compress, thicken, shorten, and become more apparent during prophase. At the centromere, chromosomes appear as two sister chromatids fused together. Chromosomes line up on the equator during metaphase.</em>