Question

Assertion (A): From evolutionary point of view, human gestation period is believed to be shortening.

Reason (R): One major evolutionary trend in humans has been larger head undergoing faster growth rate in the foetal stage.

पर्याय

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is the correct explanation of A.

Explanation:

From an evolutionary point of view, the human gestation period is believed to have become shorter. Therefore, Assertion (A) is true.

Humans evolved a relatively larger head and faster foetal brain growth, which favoured earlier birth. Therefore, Reason (R) is true.

Hence, both A and R are true, and R is the correct explanation of A.