Question

What is phylum protozoa

Answer 1

Answer:

Phylumm protozoa constitute the protons like chlamydomonas, paramecium, etc.

Answer 2

Phylum Protozoa

Explanation :

The word 'Protozoa' is derived from the Greek word 'protos' means first ' , ' zoom' means 'animals'. The Protozoans have the following characteristics:

• These are unicellular and mostly aquatic animals.

• These may be free living, parasitic, symbiotic, solitary or colonial in incident.

• The body of these organisms may be naked or covered by hard shells called pellicle.

• The shape of the body may be irregular, spherical, oval, elongated or flat.

• The cytoplasm is differentiated into two layers namely,

(a) Outer ectoplasm layer

(b) Inner endoplasm layer

• These may be uninucleate, binucleate or multinucleate based on the number of nucleus.

• The locomotion is achieved by finger like projections called pseudopodia, flagella or cilia.

• Their mode of nutrition is heterotrophic.

• The asexual reproduction takes place by means of binary fission or multiple fission.

• The sexual reproduction takes place by means of conjugation.