________ bind to_________ on microbial invaders.
a. Toll-like receptors; PAM Ps
b. Mast cells; histamine
c. Toll-like receptors; complement
d. Macrophages; defensins
a. Toll-like receptors; PAM Ps
b. Mast cells; histamine
c. Toll-like receptors; complement
d. Macrophages; defensins