Question

Assertion (A): Secondary succession always involves a predictable species sequence and ends up with the same climax community as existed prior to the disturbance.

Reason (R): A pond can never be considered as a self-sustained ecosystem, as it lacks the structural and functional components of an ecosystem.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are false.

Explanation:

Secondary succession may not restore exactly the same climax community that existed before the disturbance. A pond is a self-sustained ecosystem because it has both structural and functional components.