The comparative embryology of all vertebrates shows the development of :
Correct answer: B. Gill pouches
- A. Hairs
- B. Gill pouches
- C. Scales
- D. Fins
Explanation
Gill pouches were found to be present in the embryos of all vertebrates, even in air breathing reptiles and mammals.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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