Bacteria and Viruses

The three main shapes of bacteria are all of the following EXCEPT

• rod shaped (bacilli)
• spherical (cocci)
• octagon (octilli)
• spiral (spirilla)

As a virus changes over time, it can affect different systems within the organism. This change of the virus is called a _______________.

• mutation

• melanin

• metaphysics

The flagella on a bacteria serve what purpose? 

• helps the bacteria find a mate
• cleans the bacteria
• helps the bacteria to move
• protects the bacteria

Influenza is caused by a ___________________.

• virus

• bacteria

• prion

Producer bacteria

• make their own food through photosynthesis.
• consume other organisms.
• break down decayed organisms. 
• break down chemicals. 

A vaccine triggers your body to produce _____________ which help fight infections.

• antibiotics

• antibodies

• antigens

Viruses are microscopic infectious agents that can only replicate inside a host cell

• FALSE

• TRUE

Viruses are living organisms

• FALSE

• TRUE

Which statement about bacteria is true?

• Bacteria help you breath
• Bacteria help you digest your food
• Bacteria help add carbon dioxide to the atmosphere
• All bacteria need sunlight to make food

When a virus enters a cell and it immediately makes copies of itself this is called _______________________________.

• remediation

• replica

• replication