The diagram shows embryo development of four different animals.
How is this evidence used to suggest that life changes over time?
A: Similarities in embryonic development prove that vestigial structures are common to all species, and life has changed very little over time.
B: The genetic inheritance of each of these species is exactly the same in the early stages of development but then changes as the embryo grows and develops over time.
C: Lack of homologous structures in later stages of embryonic development indicate that each species is unique, and a common ancestor is unlikely.
D: When there are physical similarities in the early stages of embryonic development, it suggests that each of the modern organisms once had a common ancestor.
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The diagram shows embryo development of four different animals.
How is this evidence used to sugge...
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