Metabolism is a term used to describe all the chemical processes that go on continuously inside an organism to maintain life and the proper functioning of organs.
Examples include breathing, repairing cells and digesting food. These chemical processes
require
stimuli
responses
changes over time
energy

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