Question

Planaria possess high capacity of

• A. Bioluminescence
• B. Metamorphosis
• C. Regeneration
• D. Polyembryony

Hint:

Planaria's regeneration is morphallactic.
This means the body reconstructs itself entirely from small fragments, unlike epimorphic regeneration (like a lizard regenerating only its lost tail).

Answer 1

The Correct Option is C

Step 1: Recall what Planaria is known for.
Planaria is a small free living flatworm that is a favourite subject in biology labs for one particular ability.
Step 2: Rule out the distractor options.
Bioluminescence and polyembryony are not features of Planaria at all, and metamorphosis does not describe an adult flatworm cutting into pieces and surviving.
Step 3: Connect the fact to neoblast stem cells.
Planaria carries a reserve of pluripotent stem cells called neoblasts, which is why even a small fragment cut from the body can regrow into a whole new worm.
Final answer: Option 3, regeneration.