Drug use (especially alcohol, tobacco, and marijuana) ...
Early sexual intercourse and without protective measures. ...
Eating disorders. ...
Antisocial behavior. ...
Dropout of studies.
Sociologists argue that the division of the human population into two distinctive and mutually exclusive categories, male and female, is best understood as a biological fact.
The division into these two major categories as male or female is mainly due to the biological and the physiological characteristics produced in both male and female.
Although in some cases, it may be argued that they are not mutually exclusive as there are some who have both.
Nevertheless, the above mentioned characteristics are just used to differentiate between a male and a female in humans and as well an individual self-concept of being a male or a female.
brainly.com/question/16822228
Veins<span> have low </span>blood<span> pressure compared to </span>arteries<span> and need the </span>help<span> of </span>skeletal muscles<span> to bring </span>blood back to the heart<span>. Most </span>veins<span> have one-way valves called venous valves to </span>prevent<span> backflow caused </span>by<span> gravity. They also have a thick collagen outer layer, which helps maintain </span>blood<span> pressure and </span>stop blood<span> pooling. So your answer would most likely be A</span><span />