Multiple choice

Which of the following organisms is multicellulose?

  1. Chlamydomonas

  2. Chlorella

  3. Cyanobacteria

  4. Spirogyra

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Spirogyra is a filamentous green alga that is multicellular, consisting of chains of cylindrical cells arranged in a filament. Chlamydomonas and Chlorella are unicellular green algae, while cyanobacteria (though they can form colonies) are fundamentally unicellular prokaryotes.