Why are some kingdom protista misfits?

Answer 1

Single-celled organism which has a eukaryotic cell, but which is not a member of the plant, fungal, or animal kingdoms. The main protists are protozoa.

Answer 2

Some protists are considered misfits because they do not fit neatly into the established classification criteria for plants, animals, or fungi. They display a wide variety of characteristics that do not fit into the traditional categories, making their classification challenging. Additionally, protists can exhibit a mix of features from different kingdoms, further complicating their classification.