Which of the following organisms is one-celled and free-living? By: Sunday|Published on: Jun 24|Categories: Biology WAEC| 0 comments A. Volvox B. Spirogyra C. Rhizopus D. Chlamydomonas E. Hydra Correct Answer: Option D – Chlamydomonas Users Also Read These:The study which involves the inter-relationship…The cell is a functional unit of living organisms because?The following exist as free-living organisms except?A group of organisms of the same species living in a…The most efficient respiratory structure used by…SEE ALSO The conservation of natural resources is enhanced by the following practices except?