Unicellular, Multicellular, & Levels of Organization

Which best describes the main job of most cells in multicellular organisms?

• Cells work to keep themselves alive.
• Cells work to keep the organism alive.
• Cells work to release needed materials.
• Cells work to store unneeded materials.

Which organisms are capable of surviving as a single cell?

• bacteria
• humans
• plants
• fish

Molly is reading a book in science class. She reads one sentence that says, “This organism is capable of surviving as a single cell.” Which organism is she most likely reading about?

• amoeba
• flower
• mushroom
• insect

Name this protist?

• Amoeba
• Euglena
• Paramecium 
• Volvox

A unicellular organism is made up of 

• one cell
• more than one cell
• less than one cell

This is an image of a(n) _________

• Amoeba
• Euglena
• Paramecium
• Bacteria

This is an image of a(n) _________

• Amoeba
• Euglena
• Paramecium
• Bacteria

Bacteria are unicellular

• True
• False

paramecium

• unicellular

• multicellular

• neither

• both

dog

• unicellular

• multicellular

• neither

• both