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A concentration gradient of a substance across a membrane represents potential energy because it drives diffusion
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Embryology can be used to provide evolutionary evidence because during the early development stages embryos of different organisms are very similar, suggesting that all organisms may have a common ancestor.
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Embryology is the study of the anatomy development of an organisms from embryo to adult.
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hey im really sorry that i couldnt answer your question it was really hard but i really hope someone does sorry
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