Which of the following is not multicellular?

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Which of the following is not multicellular? Answer: Chlamydomonas

Chlamydomonas is a unicellular green alga, unlike Oedogonium and Chara, which are multicellular green algae. Chlamydomonas is often studied for its flagellar movement, photosynthesis, and reproduction. Its unicellular nature makes it a model organism in cell biology.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.