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Which of the following is a pair of homologous orgarrs? (a) pectoral fin of rohu and...

Which of the following is a pair of homologous orgarrs?

(a) pectoral fin of rohu and fore-limb of horse

(b) wings of grasshopper and wings of crow

(c) lungs of rabbit and gills of rohu

(d) wings of bat and wings of butterfly.

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Answer #1

Correct answer:- (a) pectoral fin of rohuand fore limb of horse.

Explanation:-The organs which have the same fundamental structure but different functions are called homologous organs. Pectoral fin of rohu and fore-limb of horse have the same fundamental structure but their functions are different. Pectoral fin is used for swimming by rohu and fore limb is used for walking by horse. Other options show examples of analogous organs. Analogous organs are those organs which have similar functions but different structural details.

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