Discussion Questions: Single-Celled Organisms
- How does the actual size of the unicellular organisms you are looking at compare with that of a familiar object?
- What do these unicellular organisms have in common? How do they differ from one another?
- What characteristics do these unicellular organisms share with multicellular organisms such as insects, birds, squirrels, and humans?
- How do unicellular organisms get their nourishment? How do they get water? How do they get oxygen? How do they get rid of wastes?
