| Answer | Crossword Clue |
|---|---|
| TAXES | One of two "certainties" in life |
| TAXES | One of two certainties in life |
| DEATH | One of Franklin's two certainties |
| instar | a stage in the life of an arthropod (as an insect) between two successive molts |
| schistosome | A parasitic flatworm that needs two hosts to complete its life cycle. The immature form infests freshwater snails, and the adult lives in the blood vessels of birds and mammals, causing bilharzia in humans |
| schistosomes | A parasitic flatworm that needs two hosts to complete its life cycle. The immature form infests freshwater snails, and the adult lives in the blood vessels of birds and mammals, causing bilharzia in humans |
