E. gingivalis, the mouth amoeba, is found in the tartar or plaque deposited around the bases of teeth and abscesses of gums, throat and tonsils in nearly 70% of human population. Its occurrence is more common in the mouth of persons suffering from pyorrhoea. It was believed in the past that E. gingivalis caused pyorrhoea.
Q. Why is amoeba called acellular? Because the entire body is made up of a single cell and all the vital functions are performed by it. Q. Define a tissue? A group of cells having identical structure, function and origin. Q. What is a simple tissue? In a simple tissue there will be only one
Locomotion implies progression of an organism through the medium in which organism changes its place and position. A protozoan moves about in search of food material, protection and partners. Moreover, the progression is effected so as to adopt themselves to the new environment