Single-celled organisms are made of only one cell. Multi-cellular organisms, such as plants and animals, have a higher degree of specialization where the cells work together and function Single-celled organisms are made of only one cell. Multi-cellular organisms, such as plants and animals, have a higher degree of specialization (the adaptation of an organism or organ to a special function or environment)where the cells work together and function to create a living organism.
The cells in multicellular organisms function differently from those in single-celled organism. A unicellular depends upon only one cell for all functions occurred in body. On the other hand a multicellular organism has cells specialized to perform several body functions that combindly support the organism.
The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialized it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.
Multicellular and unicellular organisms are perform almost all the life running activities and processes such as respiration, reproduction digestion, breathing, and metabolism.
In unicellular organism division of labour is at the organanlle level on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level.
Unicellular organism has simple body organization and multicellular organism have complex body organism.
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