What does unicellular mean?

• Many cells

• 2 cells

• 1 cell

• 0 cells

What is an organism?

• A dead animal

• A living thing

• A pencil

• A shoe

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NGSS.MS-LS1-1

Which of the following is a single-celled organism?

• Dog

• Snail

• Amoeba

• hat

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Select a unicellular organism?

• Bacteria

• Tree

• Flower

• Frog

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NGSS.MS-LS1-1

Which one is NOT a life process?

• Get rid of waste

• Nutrition/Energy

• Shake it off

• Grow and develop

Select the unicellular organisms that produce their own food. (They are also classified as producers/plants)

• Euglena and algae

• Bacteria and snail

• Tree and paramecium

• Flower and algae

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What makes unicellular organisms unique and simple?

• They can do all life process as one cell.

• They can fly and eat at Zaxby’s.

• They can survive working with other single-celled organisms.

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Why do multicellular organisms need so many cells?

• They need specialized cells to survive. Specialized cells perform a specific job/function.

• They need many cells to all do the same job/function.

• They need many cells to have a dancing cell party.

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What is the difference between multi-celled and single-celled’s organisms?

• Single-celled organisms are “simple” and multi-celled organisms are “crazy.”

• Single-celled organisms are “super” and multi-celled organisms are “complex.”

• Single-celled organisms are “simple” and multi-celled organisms are “complex.”

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NGSS.MS-LS1-1

True or False:

Single-celled organisms are able to live as one cell, and multi-celled organisms need many cells to live because each cell has specialized job.

• True

• False

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