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What is the main evolutionary indication when comparing the human hand and a bat wing?

Answer and explanation

Correct answer: Similarity in the basic bone plan indicates common ancestry

A human hand and a bat wing perform different functions, such as grasping and flying, but their forelimbs contain a corresponding basic arrangement of bones. This structural similarity is homology and suggests inheritance from a common ancestor, followed by adaptation for different uses. Thus option A is correct. They are not analogous merely because their functions differ, and the remaining options contradict observable structure.

Related tags

Homologous-OrgansBat-WingHuman-HandHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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