Suppose you accidentally find an old preserved permanent slide without a label. In your effort to identify it, you place the slide under microscope and observe the following features:
(a) Unicellular
(b) Well defined nucleus
(c) Biflagellate–one flagellum lying longitudinally and the other transversely.
What would you identify it as? Can you name the kingdom it belongs to?
Ans. All unicellular eukaryotes are classified under the kingdom Protista. Therefore, this organism falls under Protista.