Locomotory structures are not found in which of the following group?

Explanation

Apicomplexans are generally non-motile in their mature stages and lack the usual locomotory structures such as cilia, flagella or pseudopodia. Amoebas move by pseudopodia, zooflagellates by flagella and ciliates by cilia. Students may choose c because some apicomplexans show gliding movements, but gliding is not produced by the standard locomotory organelles listed for the other groups.