Question

Assertion (A): In cellular level of organisation different types of cells are functionally isolated.
Reason (R): This is due to the absence of sensory cells and nerve cells.

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

Hint:

Assertion-Reason questions test causality — always verify if (R) explains (A) logically.

Answer 1

The Correct Option is A

Both statements are true — in cellular level organisms like sponges, specialized sensory and nerve cells are absent, leading to functional isolation.