Question

care
8). In What ways protozoans are useful and harmful​

Answer 1

Explanation:

Useful :Protozoa play an important role in mineralizing nutrients, making them available for use by plants and other soil organisms. Harmful:protozoans cause diseases in humans like ,Plasmodium causes malaria.

Answer 2

Answer:

USEFUL AS THEY

They are the ultimate decomposers in nature, as they feed on bacteria and fungi, which decompose dead organic matter. They are, thus, useful in the treatment of sewage.

HARMFUL AS THEY

CAUSE MANY DISEASES IN HUMAN BODY AND OTHER ORGANISMS

Explanation: