Related Clues:
- Tiny aquatic plant
- Pond dweller
- Nonflowering plant
- Sargassum, e.g.
- Simple water dweller
- Marine growth
- It creates energy through photosynthesis
- Rootless plant
- Bit of pond scum
- Microscopic animal that swims with whirling cilia
- Chlorophyllous organism
- Plankton part
- Aquarium organism
- Microscopic pond organism
- Bit of marine life