Virus

The two most common causative agents of infectious disease are

• Virus

• Bacteria

• Dust

• Vermin

Its “life” therefore requires the hijacking of the biochemical activities of a living cell. What is it?

• Bacteria

• Virus

• Fungi

• Cell

Its a living organisms that consist of single cell that can generate energy, make its own food, move, and reproduce. What is it?

• Virus

• Bacteria

• Fungi

• Cell

The smallest bacteria are about __________

• 0.4 micron

• 4 milimeter

• 4 centimeter

• 0.02 to 0.25 micron

The viruses size is range in size from

• 0.02 to 0.25 micron

• 0,4 micron

• 0,4 millimeter

• 0,4 centimeter