Birds and mammals evolved from reptiles in mesozoic era. This is an example of

Micro evolution

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Mega evolution

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Divergent evolution

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Macro evolution

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Solution

The correct option is A Mega evolution
Birds evolved from therapods during the Jurassic period that had hollow bones, further primitive mammals evolved therapsids (reptiles). This is termed mega evolution as the newly evolved groups from the reptile-like ancestors were completely distinct and more complex.
So, the correct answer is ' Mega evolution'

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Similar questions

Q. 'Mammals and birds have evolved from reptiles'. In what way does a comparative study of their embryology establish the validity of this statement?

Some dinosaurs had feathers although they could not fly and birds have feathers that help them to fly. In the context of evolution, this means that :
(a) reptiles have evolved from birds
(b) there is no evolutionary connection between reptiles and birds
(c) feathers are homologous structures in both the organisms
(d) birds have evolved from reptiles

Q. In which era mammals and birds evolved?

Q. Some dinosaurs had feathers although they could not fly. Birds have feathers that help them to fly. Identify the correct statement based on this information.

Statement 1: Reptiles have evolved from birds

Statement 2: There is no evolutionary connection between reptiles and birds.

Statement 3: Birds have evolved from reptiles

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