Which of the following is NOT a way that normal microbiota help protect the body from pathogens?

____________________ are protein molecules released by host cells that inhibit the spread of viral infections. 

_______ is a substance which provokes a specific immune response. 

_______________________of complement activation acts in conjunction with the action of antibodies. 

_________________are substances added to a vaccine to increase the antigenicity.

Diploid cell cultures can be derived from __________________ cells.

The purpose of taking a probiotic is ________________. 

The main function of B lymphocytes is ____________________.

Order the six stages of phagocytosis. 

How is the T4 virus able to penetrate the cell wall of E. coli?