What are the differences between unicellular and multicellular organisms?

UNICELLULAR ORGANISMS	MULTICELLULAR ORGANISMS
Made up of a single cell	Made up of numerous cells.
Division of labor is at organelle level	Division of labor may be at the cellular, tissue, organ and organ system level
A single cell carries out all the life processes	Different cells are specialized to perform different functions.
The cell body is exposed to the environment on all sides	Only outer cells are specialized to face the environment.
Injury to the cell cause death of the organism.	Injury/death of some cells does not affect the organisms as they can be replaced.
Short lifespan	Long lifespan
Power of division is not lost.	Certain specialized cells lose the power of division
A well-marked capacity of regeneration.	The capacity for regeneration decreases with increased specialization.
A cell has the same function for itself and the organism.	Cells have two functions, one for themselves and other for the organism.