Q1. [1] medium exam-ready
Assertion (A): Regeneration in organisms such as Hydra and Planaria is not considered a primary mode of reproduction.
Reason (R): Regeneration requires the organism to be cut or broken up into pieces, and most organisms would not normally depend on this to reproduce.
- A Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- B Both Assertion (A) and Reason (R) are true, but Reason (R) is NOT the correct explanation of Assertion (A).
- C Assertion (A) is true, but Reason (R) is false.
- D Assertion (A) is false, but Reason (R) is true.
Generated by claude-sonnet-4-6 · 2026-06-26 01:00 · grounding rag
Model Answer
Option A — Both A and R are true, and R is the correct explanation of A. Regeneration is not primary reproduction because organisms don't normally depend on being cut up to reproduce.
Explanation
The textbook explicitly states: "regeneration is not the same as reproduction, since most organisms would not normally depend on being cut up to be able to reproduce." This directly supports both A and R, and R correctly explains why regeneration is not a primary mode of reproduction.