Which term identifies a reaction that breaks apart macromolecules?

dehydration synthesis
hydrolysis
protein synthesis
polymerization

Transpiration is the evaporation of water from

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

In which energy level are valence electrons located?