Pick from:
a). Fly swatter.
b). Active immunity.
c). Exfoliation.
d). a cuticle.
e). food.
f). bugs.
g). rays or beams.
h). resistance.
Q: Fact 1: Active immunity results when an immune response to a pathogen produces memory cells. Fact 2: Pathogens are simply a variety of diseases which kill insects. Given the two facts above, what prevents insects from being killed?
A:
b).