All pathogenic bacteria, by definition, live inside the human body, because that is the method by which they cause disease. A pathogen is anything that causes disease in its host; without the host, disease is not possibl... More »

Examples of bacteria include Streptococcus, Staphylococcus, and Esherichia coli, commonly known as E. coli. All of these bacteria are pathogenic and cause infection in humans and animals. However, there are non-pathogeni... More »

Escherichia coli, commonly known as E. coli, is a bacteria that colonizes the intestines of humans and animals, and most types of it are harmless, according to the Centers for Disease Control. There are over 700 types of... More »

Some examples of pathogenic bacteria are Bacillus anthracis, Escherichia coli, Mycobacterium tuberculosis, Salmonella and Vibrio cholerae. These particular pathogens are easily transmitted through water, and prior to mod... More »

Gram-negative bacteria do not retain the crystal violet stain used in the Gram staining method of bacteria identification and absorb the red counterstain, according to MedicineNet. Gram-negative bacteria have cell walls ... More » Science Biology

Eukarya is a classification of living things that includes organisms such as the protists, fungi, plants and animals. Organisms are divided into three domains: Archaea, Bacteria and Eukarya. Domain Eukarya consists of eu... More »

The human body, kitchen stoves and even plants all use some form of chemical energy. Chemical energy is considered one of the more abundant forms of energy available. More »