Answer:
Malaria is a protist disease spread by mosquitos the protist who causes Malaria is called the Plasmodium parasite. Another disease is sleeping sickness spread by the tsetse fly the protist is caused by Trypanosoma brucei
Explanation:
This can affect the organisms living there because now, their environment is probably different than what they have been living in for a long time, so now they have to adapt to this new environment, and if they don't, the organisms will probably end up dying.
It would be called a biome, like a tundra or a desert.