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 organisms serves as host to…Which of the following organisms exhibits both plant…Which of the following pairs of organisms is in a…The factors which affect the number and the…The substances recycled in the soil by the…