Bacteria and Viruses

Where can bacteria be found?

• Only in dirty places

• Everywhere

• Only in the body

• Only in food

What is one way bacteria help us?

• Bacteria help us breathe

• Bacteria help us digest food

• Bacteria make us sick

• Bacteria make us tired

Bacteria are 

• single celled, living organisms 

• Multicellular non-living organisms

• Unicellular eukaryotes

• Multicellular eukaryotes

Answer explanation

Bacteria are classified as single-celled, living organisms. They are prokaryotes, meaning they lack a nucleus, and are distinct from multicellular organisms and eukaryotes, which have more complex cellular structures.

Tags

NGSS.MS-LS1-1

How do bacteria make more bacteria?

• By splitting in two

• By eating food

• By sleeping

• By moving

Can bacteria make us sick?

• Yes, some bacteria can make us sick

• No, bacteria are always good

• Bacteria never make us sick

• Only animals can make us sick

What is one thing bacteria need to grow?

• Light

• Heat and moisture

• Air only

• Food from plants

What causes the common cold?

• Bacteria

• A virus

• Fungi

• Insects

What is a virus made of?

• Cells

• Protein coat and genetic material

• Chloroplasts

• Mitochondria

What do antibiotics treat?

• Viruses

• Bacteria

• Fungi

• Insects

What does a virus need to reproduce?

• Water

• A host cell

• Sunlight

• Food