Question

Assertion: Vestigial organs are greatly reduced and functionless.

Reason: These organs were fully developed and functional in the ancestral forms, but are gradually disappearing due to changes in the mode of life of their descendants.

Read the assertion and reason statements carefully and answer the question on the basis of the following options.

• A. Assertion is True, Reason is True; Reason is a correct explanation for Assertion.
• B. Assertion is True, Reason is True; Reason is not a correct explanation for Assertion.
• C. Assertion is True, Reason is False.
• D. Assertion is False, Reason is True.

Answer 1

The correct option is A

Assertion is True, Reason is True; Reason is a correct explanation for Assertion.

Correct option is (a).

Assertion Statement:

1. Vestigial organs are non-functional organs and greatly reduced, vestigial organs are not in use, so they are non-functional.
2. The human tail is an example of a vestigial organ.
3. So the assertion is true.

Reason Statement:

1. Human ancestor used their tail to maintain their balance while walking, but now humans walk with two limbs.
2. They do not require their tails, so their tails are gradually disappeared.
3. So the reason is true, and the reason is the correct explanation of the assertion.

Final Answer: Assertion is True, Reason is True; Reason is a correct explanation for Assertion.