Biology, 27.08.2019 18:00 LuckyCharms988

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sharks, whales, and dolphins share similar features such as body shape and the position of fins. however, sharks have gills for breathing, while
whales and dolphins have lungs. these differences indicate that the organisms share a common ancestor for
whales also possess a vestigial pelvic bone. the presence of the pelvis bone may indicate that whales

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sharks, whales, and dolphins share similar...