_________________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?

How do scientists introduce virus particles to the inside of a chicken egg?

Which of the following are the body’s first line of defense? Select all that apply. 

Which of the following is true about lymph?

There are three pathways by which Complement is activated:  _______ _______ _______