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…The association between two organisms in which one…Which of the following groups of organisms do not…Which of the following organisms exhibits both plant…Which of the following pairs of organisms is in a…