Which of the following diseases are caused by free-living microbes?
nitrogen
carbon
oxygen and nitrogen
Measles is caused by a virus. Viruses are not free-living organisms. They are active only INSIDE living cells. They form the borderline between the living and non-living.
Malaria is caused by Trypanosoma, a protozoan.
Ringworm is caused by a fungus.
Tuberculosis is caused by the bacterium Mycobacterium tuberculosis.