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Wednesday, February 9, 2011

Unicellular and Multicellular Organisms

        What is organism? Organism is any living thing (plant or animal) that exist in this world. A living thing which can only be seen under a microscope is called a microorganism. An organism can be unicellular or multicellular

        Unicellular organism is an organism which only has one cell while a multicellular organism is an organism that made up of more than one cell. Unicellular organism usually quite active and always moving around. They can be easily found in water such as ponds, lakes, rivers and any moist area.Organisms such as amoebaplasmodium, paramecium are unicellular organisms.

        Most animals and plants are multicellular organisms. Multicellular organism have different types of cells.  Each type of the cells contribute different functions. In humans, there are trillions of cells group into specialized tissues and organs. The examples of multicellular microorganisms such as hydra (animal) and spirogyra (plant) have shown as below.

Examples of unicellular organisms,


Paramecium


Amoeba


Plasmodium 

Examples of multicellular organisms,


 Hydra (Animal)


 Spirogyra (plant)

5 comments:

Anonymous said...

Thanks! I am studying for a test on this ;p

James connaugh said...

You've gotten the labelling of the organisms wrong!
1, Amoeba
2. Paramecium
3. Plasmodium
4. Spirogyra and
5. Hydra

Unknown said...

agree with u :))

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Unknown said...

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