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Vestigial Organs

Which one of ...

Question

Which one of the following are analogous structures?

A

Wings of pigeon and wings of Eagle

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B

Lungs of Man and Gills of Prawn

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C

Tendrils of Cucurbita and thorns of Bougainvillea

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D

Legs of Horse and flippers of dolphin

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Solution

The correct option is B Lungs of Man and Gills of Prawn
Convergent evolution is the independent evolution of similar features in species of different lineages.
Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups.
Lungs of Man and Gills of Prawn can demonstrate an analogous structure.
Hence, the Lungs of Man and Gills of Prawn are analogous structures.
So, the correct answer is 'Lungs of Man and Gills of Prawn'.

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Q. Flippers of penguin and dolphin are considered analogous though they are modified forelimbs because

Q. Study the different conclusions drawn by students of a class on the basis of observations of preserved/available specimens of plants and animals.
I. Potato and sweet potato are analogous organs in plants.
II. Wings of insects and wings of birds are homologous organs in animals.
III. Wings of insects and wings of bats are analogous organs in animals.
IV. Thorns of citrus and tendrils of Cucurbita are analogous organs in plants.
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Q. How many of the following develops as a result of divergent evolution i.e. the same structure developed along with different directions due to adaptation to different needs?

(a) Sweet potato and potato
(b) Thorn of Bougainvillea and tendril of Cucurbita
(c) Flippers of penguin and dolphin
(d) Wings of bat and flippers of the whale
(e) Eyes of octopus and mammals
(f) The sting of honey bee and scorpion

Q. Study the different conclusions (I -IV) drawn by students of a class on the basis of observations on preserved/available specimens of plants and animals.
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I. Potatoes and sweet potatoes are analogous organs in plants.
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III. Wings of insects and wings of bats are analogous organs in animals.
IV. Thorns of Citrus and tendrils of Cucurbita are analogous organs in plants.

Q. Are the thorns of Bougainvillea and tendrils of Cucurbita homologous or analogous ? Which type of evolution has brought such a similarity in them?

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