Tag: pellicle

Chromosomes: structure and functions

Introduction Karl Wilhelm von Nägeli in 1842 discovered a thread like structure which was called chromosomes. They are the filamentous bodies typically present in the nucleus...

Phylum: protozoa

First animals, solitary or colonial and protoplasmic grade of organization. Simple, unicellular microscopic organisms. Generally free living found in fresh water, salt water and damp...