I think it is natural selection. genetic variation also could be a factor for physical variation over the years.
I would say it's B because you dress how you want to be seen. What you read has nothing to do with your gender identity and neither does your job or sports
The answer is B because a virus would be more effective
<span> The hypothalamus is the gland in the brain that controls all regulatory activities of the body.</span>
Your right leg...I believe it differences in if you are right handed or left handed
