Related Clues:
- Single-celled swimmers
- Some protozoa
- Studies under a microscope
- Unicellular life
- They reproduce via mitosis
- Teensy critters
- Single-celled creatures
- They've just one cell this morning, and zero at the new base
- Pond creatures
- Tiny lab subjects
- Unicellular critters
- Creatures on a slide (var.)
- Images on some lab slides
- Slide subjects
- Single-celled critters (Var.)