Question

Which of the following best describes an example of a specific internal response to harmful bacteria?

Skin serves as a physical barrier that prevents bacteria from entering the body.
Saliva contains enzymes that destroy bacteria and prevent infection.
Bacterial infection causes the release of histamine, which leads to inflammation and swelling.
Antigens trigger the production of antibodies, which mark bacteria for destruction.

Answer 1

@Shadow

Answer 2

i think its C but not sure

Answer 3

@Ultrilliam

Answer 4

We can easily rule out A, because your skin isn't internal.

Answer 5

I would say C.
B is completely untrue.
D is idiotic, lol

Answer 6

so im correct thx Saiyan