A sprinter runs a 400m race. She takes 42 breaths in the three and a half minutes before the race and 33 breaths in the 90s seconds after the race. What was her breathing rate before and after the race?

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars