| Answer | Crossword Clue |
|---|---|
| ectoparasite | a parasite that lives on the surface of animals |
| ectoparasites | ECTOPARASITE, a parasite that lives on the surface of animals |
| exoparasite | a parasite, such as the flea, that lives on the outer surface of its host |
| exoparasites | EXOPARASITE, a parasite, such as the flea, that lives on the outer surface of its host |
| ectozoan | any animal parasite, as the louse, that lives on the surface of its host |
| ectozoa | any animal parasite, as the louse, that lives on the surface of its host |
