Homologous structures have

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(A) Homologous structures are defined as organs or skeletal elements of animals and organisms that,by virtue of their similarity,suggest their connect

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Similar origin but similar or dissimilar functions

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(A) Homologous structures are defined as organs or skeletal elements of animals and organisms that,by virtue of their similarity,suggest their connection to a common ancestor.These structures have a similar anatomical origin and developmental pattern (embryonic origin) but may perform different functions in different organisms due to adaptation to different environments.For example,the forelimbs of whales,bats,cheetahs,and humans have similar bone structures (humerus,radius,ulna,carpals,metacarpals,and phalanges) but perform different functions like swimming,flying,running,and grasping,respectively.Therefore,homologous structures have a similar origin but may have similar or dissimilar functions.

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