There are 500-1000 different species of bacteria that reside in the bowel.

Studies on the microbiota have also identified four new species of bacteria.

Resistance to cefazolin is seen in several species of bacteria.

Under these conditions, certain species of bacteria break down the waste to form methane gas.

Certain species of bacteria are responsible for turning milk into yogurt.

The scientists later discovered that a new species of bacteria had caused the illness.

Miller thought that no single species of bacteria could cause caries.

There are many species of bacteria and other microorganisms that live on or inside the healthy human body.

Around 1000 species of bacteria from 19 bacterial phyla have been found.

Sometimes species of bacteria that do not naturally exist in an area will be added to the native population.