Which protozoan group closely resembles the collar cells found in sponges?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Biology Mcqsbiology-mcqs
Published
11 May 2018
Last updated
28 May 2026

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Explanation

Choanoflagellates are unicellular protozoans that exhibit a morphology similar to the collar cells (choanocytes) of sponges, featuring a flagellum surrounded by a collar of microvilli. This structural similarity supports the evolutionary link between choanoflagellates and sponges.

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