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Dolphins (which are mammals) and sharks (which are fish) have stiff dorsal fins projecting from their backs that help them maneuver through water. these structures are best described as
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Dolphins (which are mammals) and sharks (which are fish) have stiff dorsal fins projecting from their backs that help them maneuver through water. these structures are best described as

User Brian R
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Answer: "analogous features" .
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User Hassan Hodges
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