You are given an unknown organism to identify. It is unicellular and heterotrophic. It is motile, using many short extensions of the cytoplasm, each featuring the 9 + 2 filament pattern. It has well-developed organelles and two nuclei, one large and one small. To which of the following groups does this organism likely belong?
A) foraminiferan
B) radiolarian
C) ciliate
D) kinetoplastid

Question

Quizplus · Accepted Answer

The description matches ciliates, which are unicellular, heterotrophic organisms that move using cilia (short extensions of the cytoplasm with a 9 + 2 filament pattern). They are known for having well-developed organelles and two types of nuclei: a large macronucleus and a small micronucleus.

You Are Given an Unknown Organism to Identify