The Answer is C Gas exchange take place in our lungs
With regards to gender differences in coping strategies, male is to female as fight or flight is to TEND AND BEFRIEND. Men and women have different strategies in coping with stress; men usually exhibit the fight or flight tendency while women exhibit the tend and befriend tendency.
The answer 4 the above question sounds like a vitamin D deficiency.
A characteristic one has. It could be appearance or personality
