Bacteria and gum disease to fight the infection
Its A. because since popular people have it and a lot of people have it, you must have it so you could be like them but that makes you a follower, or you can try your own style and be the leader not the follower like everyone else.
Eating healthy and exercising every day.
The two parents contribute the same to the offspring
Intuition might tell us that rough surfaces on clothing would inhibit the speed of an Olympic athlete. It is not true in some cases because rough clothing could not inhibit the performance of an athlete. If the athlete however had the experience first hand while during practice, in wearing such rough outfits then it would not inhibit his performance during his competition. But, if during the competition, he suddenly had to wear a smooth clothing, then he would have a hard time dealing with it during his competition because it is not the one that he had his practice on. So in short, it all boils down on how people adapt to these things and how well they can execute certain things that are not common to everybody. Maybe for some, if they had the time to practice using smooth clothing then it would not be a problem with promoting with their speed.
