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Question

Which among the following is not a locomotory organ in protozoa?

A
Flagellum
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B
Parapodia
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C
Cilia
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D
Pseudopodia
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Solution

The correct option is C Parapodia
The term parapodium refers to two different organs. In annelids, parapodia are paired, un-jointed lateral outgrowths that bear the chaetae. It is not present in protozoans.
The organelles of protozoa have functions similar to the organs of higher animals. The plasma membrane enclosing the cytoplasm also covers the projecting locomotory structures such as pseudopodia, cilia, and flagella.
Hence the correct option is B.

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