Question

Many organisms live in and on the human body. State which type of symbiotic relationship exist between human host and the following types of micro organisms
a. Plasmodium which causes malaria
b. bacteria in the gut which supply the body with vitamin K

Answer 1

A. parasitism. The plasmodium is helped while the human host, harmed. 
b. mutualism. The bacteria is supplied with a living environment while the host human is supplied with vitamin K