Question

classify the phylum up to classes giving diagnostic characters and example​

Answer 1

Answer:

There are about 50,000 known species of Phylum Protozoa.

Protozoans exhibit mainly two forms of life; free-living (aquatic, freshwater, seawater) and parasitic (ectoparasites or endoparasites). They are also commensal in habitat.

They are small, usually microscopic, not visualize without a microscope.

They are the simplest and primitive of all animals.

They have a simple body organization. i.e. with a protoplasmic grade of organization.

The body is unicellular (without tissue and organs).

They have one or more nuclei which are monomorphic or dimorphic.