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Lamarckism

Lamarckism ca...

Question

Lamarckism cannot explain

A

webbed toes in aquatic birds

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B

Weak muscles in the son of a wrestler

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C

Long narrow and limbless body of snakes

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D

heterophylly

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Solution

The correct option is B Weak muscles in the son of a wrestler
The Lamarckian theory is also known as the theory of inheritance of acquired characters or theory of use and disuse of organs. This theory cannot explain the reason of weak muscles in the son of a wrestler.

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Q. Which of these popular examples are cited as evidences of Lamarckism?

i. African giraffe
ii. Snakes
iii. Flightless birds
iv. Non-webbed toes of aquatic birds

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Snakes are limbless reptiles. ( )
2. Birds are suited for aerial mode of life. ( )
3. Femur is the longest bone of the body. ( )
4. The cockroach has an exoskeleton. ( )
5. Birds have hollow bones. ( )

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