Multicellular Organisms: A tissue, organ or organism that is made up of many cells is said to be multicellular. Animals, plants, and fungi are multicellular organisms and often, there is specialization of different cells for various functions. In contrast, unicellular, or single-celled organisms are much smaller in size and less complex as they are composed of just one cell that senses its environment, gathers nutrients and reproduces asexually.

Characteristics of Multicellular Organisms

• These organisms are made of more than one cell and are complex organisms.
• These organisms are visible to the naked eye.
• They possess distinct organs and organ systems.
• They are eukaryotes, i.e., they contain membrane-bound structures.
• Their cells exhibit division of labour.
• The size of an organism increases with an increase in the number of cells in the body.

Multicellular Organisms Examples

• Humans
• Dogs
• Cows
• Cats
• Chicken
• Trees
• Horse

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By Team Learning Mantras