Discuss the characteristics that make something a protist as well as protists acting as misfit ie.disease causing. Solution Protits are eukaryotes, the first form of eukaryotic living Talking about characteristics of protists: 1. Protists are mostly unicellular (single-celled), few of them atre multicellular. 2. Protists can be classified on the basis of how they move i,e. whether they move or not and how they obtain their nutrition. Animal like protists and fungus like protists they are dependent on other organisms for nutrition, hence they cannot prepare their own food and these are known as hetreotrophs. Aslo animal like protists are parasites which live on other large organisms. Plant like protists like algae they can make their own food and are known as autotrophs. Fungus like protists for an example slime mold, they live on dead and decaying matter and obtain their food externally. On the basis whether they can move or not they can be classified as flagella, pseudopodia or cilia. The animal like protists includes protozoans. 3. As protists are eukaryotes, they have nucleus and have bound organelles .Protists can be harmful and therefore it can be diseases causing as well. Animal protists they kill the bacteris in order to get food. Plasmodium like protists which causes malaria ,which is transferred from one person to another through mosquito female Anopheles. The sickness is caused as the parasites while living its life cycle inside the host organisms deforms the red blood cells. Therefore these protists causes diseases..