Can accumulate over generations so that descendants are very different <span>from their ancestors
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I think the answer is organisms
B IT WOULD BE ACCIDENTAL CAUSE SHE DIDNT MEAN TO CARRY THEM ON HER SHOES
D) The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contraction.
Plants use Photosynthesis for food and nutrients and produce oxygen in the progress