The placenta via the umbilical vein.
D is the answer... Think about every time you get cold you shiver its a natural thing that humans do to stay warm
The answer you are looking for is around 10% of teenage youths drove under the influence.
<span>The difference between obese people and thin people isn't the number of fat cells; it's the size of them. You don't make more fat cells the fatter you get; you have the same number of fat cells you had as an adolescent. The only difference is that the fat globules within each cell increase as you store more fat. By the way, muscles work the same way; you don't make more muscle cells; the muscle cells get larger.</span>