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English 15 Online
OpenStudy (xofallenangelox):

I'll medal and fan if you thoroughly explain why. Which one of the following is a major difference between the circulatory systems of earthworms and fish? A. Fish have a single central heart; earthworms have several hearts. B. Earthworms have a single central heart; fish have several hearts. C. Fish have five pairs of auxiliary hearts; earthworms have one pair of auxiliary hearts. D. Earthworms have five pairs of auxiliary hearts; fish have one pair of auxiliary hearts.

OpenStudy (xofallenangelox):

I know this is English but no one in the science one would answer my question.

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