Question

From the following animals which can regenerate its broken body part?

• A. Cockroach
• B. Frog
• C. Sparrow
• D. Star fish

Hint:

Remember: echinoderms like starfish are classic examples of extensive regeneration in animals.

Answer 1

The Correct Option is D

Star fish (phylum Echinodermata) possess remarkable regenerative ability; they can regenerate lost arms and, in some species, an entire individual can develop from a single severed arm if part of the central disc is attached. Regeneration involves cell proliferation and re-patterning to replace tissues and organs. Cockroaches and frogs show limited regeneration under specific conditions (cockroach limbs can regrow during successive molts; amphibian larvae regenerate tails), while birds such as sparrows lack significant regenerative capacity for major body parts.