Is paramecium a unicellular or multicellular organism

Paramecium is the single celled organism (unicellular).

Explanation: An organism which contain only one cell is known as unicellular organism. Paramecium is the unicellular parasite. It can move and digest food. In its structure there are food vacuoles for the digestion of food. Paramecium is the eukaryotic organism because it has a well organised cell with distinct nuclear membrane. It belongs to kingdom protista.