Bacteria I

A bacterial cell is smaller than a human cell, but larger than the cell of a virus.

Bacteria II

Some bacteria are bad. Some are not.

Bacteria III

Some bacteria have become antibiotic resistant. MRSA, for instance.

Bacteria IV

All of our penicillin today came from a cantaloupe procured at the local market.

Bacteria V

One fungus, a yeast, can penetrate the human heart.