Multiple choice Which of the following organisms causes malaria? Salmonella Mycobacterium tuberculosis Escherichia coli Plasmodium Reveal answer Fill a bubble to check yourself D Correct answer Explanation Plasmodium is a protozoan parasite that causes malaria in humans. Salmonella causes food poisoning, Mycobacterium tuberculosis causes tuberculosis, and Escherichia coli can cause various infections but not malaria.