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Bird wings and insect wings perform similar functions; yet why are they not homologous?

Answer and explanation

Correct answer: Their basic structure and origin are different

Homologous organs share an underlying structural plan because of common ancestry, whereas analogous organs only share a function. Bird wings are modified vertebrate forelimbs with bones, while insect wings are extensions of the insect body wall and have a different origin and construction. Thus option A is correct. Options B, C, and D merely describe similarities that do not establish homology; similar function is precisely why they are called analogous.

Related tags

Bird WingInsect WingAnalogous OrgansHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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