Answer:
Adaptations and selective breeding, if that is a choice for you.
Explanation:
The answer for the first question is B. mucus sweat and tears, all of those are defenses that the body uses when attacked. Now for the second option is A the answer because the first filter that a virus or a desease must pass is indeed the skin. Hope is good for you
1. A
2. D????
3. C?
4. B
5. A????
