Although viruses and bacteria are different, they do share several similarities. Some characteristics common both in viruses and bacteria are explained below:

____: Both viruses and bacteria are very tiny and are not seen by naked eyes. Both are found in different forms and can be observed under a microscope.
______: Viruses and bacteria can infect a host organism (plant, animal, human or a bacterium) and may cause illness.
_____: Bacteria and viruses contain a genome.
Word Bank:
Ribosome, macroscopic, infectivity, genetic material, microscope, proteins, phospholipids

- Microscopic: Both viruses and bacteria are very tiny and are not seen by naked eyes. Both are found in different forms and can be observed under a microscope.

- Infectivity: Viruses and bacteria can infect a host organism (plant, animal, human or a bacterium) and may cause illness.
- Genetic material: Bacteria and viruses contain a genome.