Understanding Viruses and Bacteria

If someone is sick with a bacterial infection, they may be given ​ (a)   . That doesn't work if you are sick with a ​ (b)   , because viruses are not alive.

• antibiotics
• virus
• cell
• water

Viruses are bacteria.

• True

• False

The single deadliest entity on Earth is the ______________.

• bacteria

• bacteriophage

• antibiotic

Bacteria are 

• single celled, living organisms 
• Multicellular non-living organisms
• Unicellular eukaryotes
• Multicellular eukaryotes

Viruses can also be called ______________

• flagella
• parasites
• decomposers
• pathogens