NEET BIOLOGY

Detailed explanation-1: -So, the correct answer is ‘E. coli’.

Detailed explanation-2: -There are different types of pathogens, but we’re going to focus on the four most common types: viruses, bacteria, fungi, and parasites.

Detailed explanation-3: -Nonpathogenic: Incapable of causing disease. For example, nonpathogenic E. coli are E. coli bacteria that do not cause disease, but instead live naturally in the large intestine.

Detailed explanation-4: -Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms. Some common pathogens in each group are listed in the column on the right. Infectious agents can grow in various body compartments, as shown schematically in Fig. 10.4.