Which of the Following Is Not a Mechanism Employed by the Human

question 89

Multiple Choice

Which of the following is not a mechanism employed by the human microbiota to contribute to the first line of defense?

• A)It can phagocytose pathogens
• B)It can lower the pH making the environment too acidic for pathogens to survive
• C)It can out-compete pathogens for limited nutrients
• D)It can train the immune cells to recognize antigenic markers
• E)It can block potential binding sites on epithelial cells restricting adhesion,which is a necessary step for infection