Pick the odd one out.
Euglena, Paramoecium, Amoeba, Cheek cell
Euglena, amoeba and paramoecium are independent unicellular organisms. All the life processes like respiration, digestion, excretion are all carried out by a single cell. Cheek cell is a part of the multicellular human body and is not an independent organism. Hence, cheek cell is the odd one out.