Adjective modifier

• protozoan: He used flasks of different species of the protozoan Paramecium, which eats bacteria.

Modifies a noun

• bursaria: I have been visiting the High Meadow for several year, following the seasonal changes in its normally enormous colonies of Paramecium bursaria.

• caudatum: Finally, I will delve into my own work that applies these ideas to the movements of the single-celled ciliated protozoa, Paramecium caudatum.

Noun used with modifier

• genus: How does one find out that P. bursaria does indeed belong in the genus Paramecium?