The rate of speed determined by distance and performance of an athlete is known as speed endurance. Speed endurance training is conducted to ensure the maintainence of an optimal speed during a prolonged desired time of the run. It is beneficial for both sprinters, and long distance runners.
The answer is d both a and b
First comes non-rem sleep, followed by a shorter period of rem sleep, and then the cycle starts over again
Not taking good care of themselves. Not being active, poor hygiene, bad diet, weak immune system etc
If an organism can adapt to its environment, it is more likely to survive because it changes and adheres to things
