GENERAL ANATOMY
EMBRYOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The similarities in development across organisms show how they are related.
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The development of embryos shows evolution occurring in organisms before birth.
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The similarities of embryos shows that all organisms used to once look like each other.
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Comparative embryology is not used as evidence for evolution.
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Detailed explanation-1: -Comparative embryology is the study of the similarities and differences in the embryos of different species. Similarities in embryos are likely to be evidence of common ancestry. All vertebrate embryos, for example, have gill slits and tails.
Detailed explanation-2: -Similar anatomy across different species highlights their common origin and can be seen in homologous and vestigial structures. Embryology provides evidence for evolution since the embryonic forms of divergent groups are extremely similar.
Detailed explanation-3: -Evidence of an evolutionary common ancestor is seen in the similarity of embryos in markedly different species. Darwin used the science of embryology to support his conclusions. Embryos and the development of embryos of various species within a class are similar even if their adult forms look nothing alike.
Detailed explanation-4: -Comparative embryology shows similarities between organisms that do not appear to be similar as adults because many features of embryos disappear by adulthood. For example, all vertebrate embryos have a tail and gill slits, but these disappear by adulthood in many vertebrates, including humans.
Detailed explanation-5: -Embryology serves as evidence for evolution as related organisms often show similarities in their development patterns. This suggests that they are descendants of a common ancestor. Scientists may look for similar structures that develop during the embryonic stages of development in different organisms.