Related Clues:
- Lake plant
- Pool organism
- Creature on a slide
- Single unit
- Part of many a snail's diet
- 'The Far Side' critter
- Stagnant water problem
- "The Far Side" critter
- Slide presentation
- One-celled protozoa (Var.)
- Microscopic organism with single cell
- Tiny one-celled animal
- Gala class of seaweed
- Microscopic organism with single changing cell
- Water plant