Single and Multi-Celled Organisms

Which characteristic do single-celled organisms and multicellular organisms have in common?

• Both have cells with specialized functions for each life process

• Both perform all life processes within one cell

• Both have a way to get rid of waste materials.

• Both are able to make food from sunlight.

How are multicellular and unicellular organisms different?

• Multicellular organisms have more than one cell and are smaller than unicellular organisms.

• Unicellular organisms have more than one cell and are larger than multicellular organisms.

• Unicellular organisms have one cell and are smaller than multicellular organisms.

• Multicellular organisms have one cell and are larger than unicellular organisms.

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Which is a characteristic of most single-celled organisms?

• They have a complex nervous system.

• They contain several different types of cells.

• They perform all life processes.

• They have a circulatory and a respiratory system.

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Which statement best describes how a multi cellular organism survives?

• Every cell carries out the same functions for the survival of the organism.

• The cells all have the same structures that allow the organism to survive.

• All life processes are performed by each cell for the survival of the organism.

• The cells have different functions, and together they are essential for the survival of the organism.

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Which is an example of a single-celled organism?

• fish

• tree

• fungi

• human

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Which organism is best classified as a single-celled organism?

• grasshopper

• bacteria

• pine needle

• mole

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Which one of the following is a single-celled organism?

• Dog

• Fish

• Amoeba

• Worm

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Which organism is single-celled?

• bacteria

• tree

• dog

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Paramecium move using _____.

• pseudopods

• cilia

• flagella

An organism with more than one cell is known as a/an

• organ system

• multicellular organism

• unicellular organism

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