Answer:
Normal flora are microorganisms that live in another living organism (human or animal) or inanimate objects without causing disease.
Explanation:
The human body is not sterile; we become colonised by bacteria from the moment we are born. We are covered with, and contain within our intestines, approximately one hundred trillion bacteria that form the normal flora of our bodies. This normal flora helps to prevent us becoming colonised with more dangerous bacteria, which might lead to infection.
