Which of the following organisms is one-celled and free-living? by Sunday | Jun 24 | Biology WAEC | 0 comments A. Volvox B. Spirogyra C. Rhizopus D. Chlamydomonas E. Hydra Correct Answer: Option D – Chlamydomonas Users Also Read These:Which of the following groups of organisms do not…The substances recycled in the soil by the…Which of the following organisms is both parasitic…Which of the following organisms cannot exist freely…Which of the following organisms exhibits both plant…