How is comparative embryology used as evidence for evolution?
A. The similarities in development across organisms show how they are related.
B. The development of embryos shows evolution occurring in organisms before birth.
C. The similarities of embryos shows that all organisms used to once look like each other.
D. Comparative embryology is not used as evidence for evolution.
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What is a trait?
A. a color
B. the quality or characteristic of an organism
C. the DNA of an organism
D. when mutatuons cause extra limbs.
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