Question

Which of the following are homologous organs? (a) wings of birds and locust (b) wings of...

Which of the following are homologous organs?

(a) wings of birds and locust

(b) wings of birds and pectoral fins of fish

(c) wings of bat and butterfly

(d) legs of frog and cockroach.

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Answer #1

ANSWER-

(b) wings of birds and pectoral fins of fish

EXPLANATION-

A homologous organs are those which have same origin and structure but different function. Wings of birds and pectoral fins of fish have the same fundamental structure but their functions are different. Wings are used for flying by birds and pectoral fins are used for swimming by fish. Other options show examples of analogous organs. Analogous organs are those organs which have similar functions but different structural details.

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