Wings of a butterfly and wings of a bird perform similar functions but are not anatomically homologous. Such structures illustrate:
A{'text': 'Divergent evolution producing homologous structures', 'label': 'A'}
B{'text': 'Convergent evolution producing analogous structures', 'label': 'B'}
C{'text': 'Atavism producing vestigial structures of past lineages', 'label': 'C'}
D{'text': 'Coevolution producing mutualistic adaptive structures', 'label': 'D'}
Answer & Solution
Correct answer: B. {'text': 'Convergent evolution producing analogous structures', 'label': 'B'}
Different structures evolving for the same function due to similar selective pressures give rise to analogous organs. This is convergent evolution. Other NCERT examples include the eye of the octopus and of mammals, and the flippers of penguins and dolphins.
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