The type of antibiotic used depends on the bacterium causing the infection. These shape classifications help identify the different bacteria. There are various structures within a bacterial cell ...

Bacteria are among the smallest living things. A single bacterium consists of just one cell. Not all bacteria are harmful. There are different unicellular organisms and types of bacteria.

Bacteria are among the smallest living things. A single bacterium consists of just one cell. Not all bacteria are harmful. There are different unicellular organisms and types of bacteria.