CELLULAR ORGANIZATIONS: The arrangement of cells in a specific passion to make an entire living organism is called Cellular organization. Cellular organization are of three types.

1) Unicellular Organization: In this type of organization an organism is composed of only one cell. Those type of organisms are called unicellular organisms. Examples: Amoeba, Paramecium, and Euglena, Bacteria, etc.

  • Colonial Organization:In colonial type of cellular organization, many unicellular organisms live together but do not have any division of labour among them. Each unicellular organism in a colony lives its own life and does not depend on other cells for its vital requirements. Volvox is a green alga found in water that shows colonial organization. Hundreds of Volvox cells make a colony.

3) Multicellular organization: In multicellular organization, cells are organized in the form of tissues, organs and organ systems. Frog and mustard are the familiar examples of multicellular organization.

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