| Answer | Crossword Clue |
|---|---|
| AMOEBA | It spends its life in a solitary cell |
| TURTLEDOVE | This animal presumably spends its entire life in a shell ... correction: just the first part of its life |
| leishmania | A single-celled parasitic protozoan that spends part of its life cycle in the gut of a sandfly and part in the blood and other tissues of a vertebrate |
| leishmanias | A single-celled parasitic protozoan that spends part of its life cycle in the gut of a sandfly and part in the blood and other tissues of a vertebrate |
| AMEBA | Its whole life is spent in a tiny cell |
