Related Clues:
- Low life
- Single-celled swimmers
- Some protozoa
- Studies under a microscope
- They're seen on slides
- Tiny pond denizens
- Pond critters (Var.)
- Shape shifters?
- One-cell creatures
- Microscopic shape-shifters
- Protean ones
- They reproduce via mitosis
- They're often under the microscope
- Unicellular swimmers
- Teensy critters