Multiple choice

Regeneration is carried out by ____________.

  1. broken cells

  2. all cells

  3. specialized cells

  4. differentiated cells
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Regeneration is specifically carried out by specialized cells (often called neoblasts in planaria or stem cells in other organisms) that can dedifferentiate, proliferate, and redifferentiate into needed cell types. Broken cells are damaged beyond function, all cells lack regenerative capacity, and differentiated cells have limited ability to change fates.

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