Which statement does not apply to haptens?

Which of the following is not required for T cell activation?

Which of the following is not a reason the skin is a useful barrier?

Which of the following is not a function of a molecular second line defense?

All the following apply to B cells except

Secondary lymphoid tissues

Which cell type is a subgroup of lymphocytes, abundant in the liver, and has important roles in innate immune protection against viruses, bacteria, parasites, and even tumor cells?

All the following apply to T cells except

Which of the following is false about the enzyme lysozyme?

Antimicrobial peptides can do all of the following except