Explanation:
a) This is a retrospective observational study.
b) This is an appropriate choice due to the rareness of MS.
c) The subjects were US military personnel, some of which had developed MS.
d) The variables were the vitamin D blood levels and whether or not the person developed MS.
I am in k12, and I just wear shorts and a tank top, so I don't get too over heated.
Answer:
I think the answer is false
Explanation:
..but I'm not sure
Avoid riding on roadways. If there is a sidewalk you could ride on nearby, use it. Drivers get a little nervous if they're sharing the roadway with a bicycle. Avoid riding too long without breaks, you can get tired out and unintentionally harm yourself or others. Drink lots of water on the way, and wear helmets at all times, no matter how stupid you think they make you look. :)
There is no question
Explanation
