Multiple choice

If hydra is cut into two parts, it does not die because _______________.

  1. it can form bud

  2. it can regenerate into 2 complete organisms

  3. it can produce spores

  4. the two parts are new individuals
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hydra possesses remarkable regenerative abilities. When cut into two parts, each part can regenerate into a complete organism due to the presence of interstitial stem cells that can differentiate into all necessary cell types. This is different from budding (where a bud develops on the parent), spore formation, or simply being separate individuals. The key is active regeneration into complete organisms.

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