Which of the following organisms is one-celled and free-living?

JAMB Biology 2024 215 views
Source: JAMB · 2024

Which of the following organisms is one-celled and free-living?

  1. Volvox
  2. Spirogyra
  3. Rhizopus
  4. Chlamydomonas ✓
Explanation

Chlamydomonas is a single-celled green alga. It lives freely in water and swims with two flagella.

Volvox is a colony of many cells. Spirogyra is a many-celled filament. Rhizopus is a mould that grows on food, and it is not free-living in water.

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