Viruses

Viruses are larger than bacteria but smaller than human cells.

Viruses are much smaller than bacteria and about 100 times smaller than human cells.

Viruses are similar in size to human cells but larger than bacteria.

Viruses are larger than both bacteria and human cells.

They are made up of cells, but lack a nucleus.

They are too small to be seen with the naked eye.

They are halfway between a living organism and a chemical, and cannot reproduce on their own.

They can only infect plants and animals, not humans.

They divide independently like bacteria.

They absorb nutrients from their environment and grow.

They enter a host cell, hijack its machinery to produce more viruses, and then cause the host cell to die.

They form colonies outside of host cells and multiply.

Antibiotics are highly effective against all types of viral infections.

Antibiotics are only effective against bacterial infections and do not work for viruses.

Antibiotics can cure viral infections if taken in large doses.

Antibiotics are effective against viruses that cause the common cold but not the flu.