In this article we will discuss about the structure and reproduction in paramoecium, explained with the help of suitable diagrams. Structure of Paramoecium: 1. The body is like a crude slipper (Fig. 18.10), the anterior end blunt and the posterior end narrower. 2. The surface is covered with a tough and flexible pellicle and cilia arising from basal granules are [...]
In this article we will discuss about the various examples (classes and subclasses) of protozoa. Phylum I. Sarcomastigophora: Locomotory organelles flagella or pseudopodia or both. Nucleus single type except in developmental stages of certain foraminifera. Spore formation absent. Sexuality often present, essentially syngamy. Subphylum I. Mastigophora: Solitary or colonial; flagella one or more in trophozoites; asexual reproduction by symmetrogenic binary [...]
In this article we will discuss about the structure and reproduction of vorticella, explained with the help of a suitable diagram. Structure of Vorticella: 1. The body is a solid inverted bell from the base of which runs a narrow stalk made of contractile elements by which the animal is permanently attached to some submerged substratum (Fig. 18.13). 2. The [...]