What is the paramecium's characteristic?

Answer 1

Paramecium is a group of unicellular ciliate protozoa, which are commonly studied as a representative of the ciliate group, and range from about 50 to 350 μm in length. Simple cilia cover the body, which allow the cell to move with a synchronous motion (like a caterpillar) at speeds of approximately 2,700μm/second (12 body lengths per second). There is also a deep oral groove containing inconspicuous tongue-like compound oral cilia (as found in other peniculids) used to draw food inside. They generally feed on bacteriaand other small cells. Osmoregulation is carried out by a pair of contractile vacuoles, which actively expel water from the cell absorbed by osmosis from their surroundings. They are relatively large animals and can easily be seen with a medium-power microscope.