| Answer | Crossword Clue |
|---|---|
| aeroplankton | minute organisms carried in the air |
| aeroplanktons | AEROPLANKTON, minute organisms carried in the air |
| neustons | minute organisms that float in the surface film of water |
| neustic | the aggregate of minute aquatic organisms that float or swim in the surface film of a body of water |
| neuston | the aggregate of minute aquatic organisms that float or swim in the surface film of a body of water |
| pleuston | organisms living in the thin surface layer existing at the air-water interface of a body of water |
