| Answer | Crossword Clue |
|---|---|
| ctenophore | a marine animal with comblike cilia |
| ctenophores | CTENOPHORE, a marine animal with comblike cilia |
| paramecium | A single-celled freshwater animal that has a characteristic slipperlike shape and is covered with cilia |
| parameciums | A single-celled freshwater animal that has a characteristic slipperlike shape and is covered with cilia |
| vorticellas | A sedentary, single-celled aquatic animal with a contractile stalk and a bell-shaped body bearing a ring of cilia |
| vorticella | A sedentary, single-celled aquatic animal with a contractile stalk and a bell-shaped body bearing a ring of cilia |
