Thorn of Bougainvillea and tendril of Cucurbitaare examples of

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6.Evolution

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Thorn of Bougainvillea and tendril of Cucurbitaare examples of

vestigial organs

retrogressive evolution

analogous organs

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

Contribution of scientist : Von Baer

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The evolutionary story of moths in England during industrialisation reveals, that 'evolution is apparently reversible'. Clarify this statement.

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Which of the following are the wrong statements

$I.$ Organs which are different in basic structure and origin but performs similar functions are called analogous organ

$II.$ Organs with different to basic structure and origin but perform similar functions are called homologous organs

$III.$ Homologous organs lead to convergent evolution

$IV.$ Analogous organ leads to divergent evolution

The correct combination is

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Hand of man, wing of bat and flipper of seal represents

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Definitions / Explanation : Divergent evolution & Convergent evolution

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Thorn of Bougainvillea and tendril of Cucurbitaare examples of

Solution

Similar Questions

Contribution of scientist : Von Baer

The evolutionary story of moths in England during industrialisation reveals, that 'evolution is apparently reversible'. Clarify this statement.

Hand of man, wing of bat and flipper of seal represents

Definitions / Explanation : Divergent evolution & Convergent evolution

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