Protozoa
Definition: Microscopic, eukaryotic unicellular organism commonly motile heterotrophic having one or more nuclei called protozoa. General Characteristics: 1)Habitat: Protozoans exhibit mainly two forms of life: Free living (aquatic) and parasitic (ecto-endo parasite). 2) Cell size: The body is microscopic and unicellular. 3) Type: They are the simplest and most primitive of all animals. 4) Organisation: … Read more