Question 3
Viruses, Monera, Protista and FungiWhich of the following organisms is one-celled and free-living?
- A.Volvox
- B.Spirogyra
- C.Rhizopus
- D.Chlamydomonas
- E.Hydra
Show the answer and explanation
Answer: D (Chlamydomonas)
Explanation
Chlamydomonas is a single free-swimming cell; Volvox is a colony and the others are many-celled.