What is the difference between unicellular and multicellular organisms?

Unicellular organisms consist of a single cell that performs all functions necessary for life, while multicellular organisms are made up of many specialised cells that work together.

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Name two examples of unicellular organisms.

  1. Euglena
  2. Amoeba

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What is the function of the chloroplast in Euglena?

The chloroplast is the site of photosynthesis.

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What is the function of the flagellum in Euglena?

The flagellum is used for movement.

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What is the function of the nucleus in amoeba?

The nucleus manages the cell's activities.

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What is the function of the contractile vacuole in amoeba?

The contractile vacuole collects and expels excess water.

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