| Answer | Crossword Clue |
|---|---|
| ALGA | Primitive water plant |
| ALGA | Primitive water organism |
| sponges | A primitive sedentary aquatic invertebrate with a soft porous body that is typically supported by a framework of fibers or calcareous or glassy spicules. Sponges draw in a current of water to extract nutrients and oxygen |
| ALGA | Primitive plant |
| FERN | Primitive plant |
| ALGA | Primitive plant. |
