Fimbriae and pili differ in that pili ________.

The enhancement of phagocytosis by coating microorganisms with certain serum proteins is called ___________.

Innate immunity is:

The enhancement of phagocytosis by coating microorganisms with certain serum proteins is called ___________.

The specificity of an antibody is due to:

Which of the following does NOT provide protection from phagocytosis?

Which of the following is NOT used by bacteria for attachment to a host?

Varicella (chickenpox) is a __________ type of disease.

Normal microbiota provide protection to the host by ________.

Which of the following is the best definition for strain?