The second line of defense of the immune system, also an aspect of innate immunity, is the nonspecific resistance. These defense mechanisms destroy invaders in a general way and do not target specific antigens.
I think that the answer is D. Dieting because dieting helps your body eat more things that are good for it and, less things that are bad for it. It can make your skin clearer, and help you feel good overall which is a physical health help trait.
Answer:
D sleep habits.
Explanation:
You can control your sleeping habits but you can not control your age, poverty, or climate
D
I answered C and it was marked wrong
