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प्रश्न
The diagram given below shows the early embryonic stages of fish, reptiles, birds and humans. Though adult reptiles, birds and mammals breathe air, their embryos possess gills. How does this fact support evolution?
एक पंक्ति में उत्तर
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उत्तर
Embryos show the presence of gills to prove that the ancestors were aquatic. The concept of “ontogeny recapitulates phylogeny”.
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