Vaccines are NOT for:

Lymph in the right leg rejoins blood flow in the:

_____ that occur during production/division/differentiation of B cells determine differences in amino acid sequences of antibodies – that allows for different specificities

_____ are large lymphatic nodules that are located in the walls of the pharynx.

Which one of the following is NOT one of the nonspecific body defenses:

Lymph in the right leg rejoins blood flow in the:

The (a) _____ (serous membrane) covers the lungs

The study of immunity and the immune system is called endocrinology.

An antibody has two parallel pairs of polypeptide chains: one pair of _____ chains and one pair of _____ chains

If partial pressure goes up then