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Biology 22 Online
OpenStudy (anonymous):

Which is the definition of an embryo? # A. Prenatal stage of a human up to 8 weeks of development after fertilization. B. Prenatal stage of a human beyond 8 weeks of development after fertilization. C. Prenatal stage of a human up to 9 months of development after fertilization.

OpenStudy (stormswan):

A

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