The presence of gill slits, in the embryos of all vertebrates, supports the theory of(a) biogenesis(b) recapitulation(c) metamorphosis(d) organic evolution
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The correct answer is biogenesis option a
Explanation:
According to biogenetic law or recapitulation, each and every organism in its path of development undergoes similar phases as its ancestors. Tadpole larva, which is a part of the life cycle of frog resembles a fish. Fish is the ancestor of the frog. This example explains well about the biogenesis or the biogenetic law.
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