6.Evolution
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Thorn of Bougainvillea and tendril of Cucurbitaare examples of

A

vestigial organs

B

retrogressive evolution

C

analogous organs

D

homologous organs.

(AIPMT-2008)

Solution

(d) : The organs which have the same fundamental structure but are different in function are called homologous organs. Thorn of Bougainvillea and tendril of Cucurbita both arises in the axillary position, but have different functions.

Standard 12
Biology

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