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Explain Cell.
All the living organisms are made of different types of cells. Cells are the basic units or the building blocks of life.
The cell is the smallest biological, structural and functional unit of all living beings. A cell performs different vital functions like respiration, digestion, reproduction and many more to keep itself alive. The human body is made of trillions of cells.
The existing living cells are able to split themselves into two parts, thereby forming new cells. The cells' genetic material is duplicated before it undergoes splitting. Hence, new cells are formed using existing cells.
Unicellular organisms: There are few organisms that are made up of single cell such as bacteria, amoeba, paramecium, etc. and single cell performs all the function such as digestion, respiration, excretion. This type of organism is known as unicellular organism.
Multicellular organisms: The higher organisms like human, plants, animal, reptiles, fishes, insects are made up of numerous cells and these organisms show division of labor. Such organisms are known as multicellular organisms.
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