Answer:
Protozoa
Step-by-step explanation:
Protozoa are referred to as single-cell eukaryotes that feed on other microorganisms or other tissue. it is of different shape that can vary in shape or fixed shaped like amoeba or paramecium . They live moist environment like fresh water or moist soil, etc.
There are three different types of protozoa namely:
Mastigophora, Sarcodina, and opalinata.