Which of the following organisms does not exist as a single cell?
Answer Details
Volvox is the organism that does not exist as a single cell. Unlike Amoeba, Euglena, and Chlamydomonas, which are unicellular organisms, Volvox is a colonial organism made up of thousands of individual cells that work together to form a larger sphere-shaped organism. These individual cells are specialized to perform specific functions, such as reproduction and movement, and work in coordination with one another to sustain the entire organism.