Unicellular and Multicellular Organisms

Which best describes a difference between a unicellular organism and a multicellular organism?

• All unicellular organisms are fungi and all multicellular organisms are bacteria.

• A unicellular organism survives as one cell. A multicellular organism has many cells working together to survive.

• A unicellular organism is complex and a multicellular organism is simple.

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Which states a difference between an amoeba and an worm?

• An amoeba is made up of many cells and an worm is made of only one cell.

• An amoeba is single-celled and a worm is multicellular.

• An amoeba is a non-living organism and a worm is a living organism.

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Which is an example of a single-celled organism?

• Butterfly

• E.Coli

• Mushroom

• Snake

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Which type of organism would able to perform all necessary functions within one cell?

• Unicellular Organism

• Multicellular Organism

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Which is an example of a multicellular organism?

• E.Coli

• Paramecium

• Spider

• Yeast

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Bacteria often live inside the body of a living host, such as a dog. Which best describes how bacteria carry out the processes necessary for survival?

• Bacteria are made up of many different cells that carry out life processes.

• Bacteria are made up of one cell which is capable of carrying out all life processes.

• Bacteria use their many different organelles to carry out life processes.

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A single-cell organism can do everything a cell from a multicellular organism can do except

• consume or make food.

• reproduce.

• specialize.

• use energy.

Bacteria, and most protists, are single-celled organisms. What do they most likely have in common?

• Both bacteria, and single celled protists, are large organisms.

• Both bacteria, and single celled protists, can carry out all life functions in their one cell.

• Both bacteria, and single celled protists, develop specialized cells to survive.

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Charlie and Frankie read about different kinds of organisms. They read about an organism that has different body systems. What can Charlie and Frankie most likely conclude about this organism?

• The organism is unicellular.

• This organism can be unicellular or multicellular.

• The organism is multicellular.

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Which is an example of a unicellular organism?

• Beetle

• Dog

• Euglena

• Tree

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