Which question is most likely to be studied by biologists? what is the effect of exercise on heart rate in horses? how does knowledge of phonics affect reading ability? what is the effect of cooking temperature on the flavor of cake? does the number of school days affect how much energy the school uses?

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