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 feeds both…Which of the following organisms serves as host to…Which of the following organisms is both parasitic…Which of the following pairs of organisms is in a…Which of the following organisms cannot exist freely…