Viruses and Bacteria 6th

Where are bacteria located?

• only in the water

• everywhere

• only on my hands.

What shape is bacteria?

• round

• straight

• twisted

• All of these

Which of these statements is true?

• A virus is unicellular, it has only one cell.

• A virus may sometimes be multicellular, have many cells.

• A virus has no cells

Tags

NGSS.MS-LS1-1

A viruses are considered

• living

• non-living

How could you describe the size of a virus?

• smaller than bacteria

• larger than a parasite

• about the size of a dime

The bacteria that causes bubonic plague is transmitted to human by fleas. Which term BEST describes the role of the fleas in transmitting bubonic plague?

• vector
• air
• decomposer
• pathogen

Which BEST compares bacteria and viruses?

• bacteria are smaller than viruses
• bacteria cause disease, but viruses do not
• bacteria are living organisms, but viruses are not
• bacteria have genetic material, but viruses do not

Which is the most effective defense against the chicken pox virus?

• antibiotics
• diet
• exercise
• vaccine

What do viruses need to reproduce?

• genetic material

• a host cell

• bacteria

Diseases which are contagious.

• non communicable

• communicable

• protozoans