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Evolutionary Evidence- Fossils

Question 2An ...

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Question 2
An example of homologous organs is

(a) Our arm and a dog’s fore-leg
(b) Our teeth and an elephant’s tusks
(c) Potato and runners of grass
(d) All of the above

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Solution

(d) All of the above

All of the above given pairs are structurally same and have similar evolutionary origin. Hence, they are all said to be homologous organs.

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Question 2
An example of homologous organs is

(a) Our arm and a dog’s fore-leg
(b) Our teeth and an elephant’s tusks
(c) Potato and runners of grass
(d) All of the above

Tusks are which type of teeth in an elephant?

Q. The wings of a housefly and the wings of a sparrow are an example of :
(a) analogous organs
(b) vestigial organs
(c) respiratory organs
(d) homologous organs

Q. Short/Long answer type questions
State three differences between Homologous and Analogous organs and give an example of each.

Q. How many of these is/are example(s) of homologous structures?
I. Vertebrate hearts
II. Potato and carrot
III. Potato and radish
IV. Vertebrate brains
V. Flippers of penguin and dolphin

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Evolutionary Evidence- Fossils

Standard X Biology

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