Concept:Protozoans are classified into different phyla based on the type of locomotory organelles they possess.
Explanation:The given diagram shows
Paramecium, which is a single-celled ciliated protozoan.
Its entire body is covered with many tiny, hair-like structures called cilia.
These cilia beat rhythmically for movement and also help sweep food into its oral groove.
A
Paramecium has both a macronucleus and a micronucleus, a characteristic feature of the phylum Ciliophora.
In contrast, organisms in Rhizopoda move by pseudopodia, Euglenophyta possess flagella, and Rhodophyta are red algae.
Since the organism uses cilia for locomotion, it belongs to phylum Ciliophora.
Answer:B. Ciliophora
