The diagram shows a basic food chain.

Match the digestive enzymes to the macromolecules they to digest. break down fats into glycerol and fatty acids break down carbohydrates into simple sugars break down nucleic acids into nitrogenous bases and simple sugars break down proteins into amino acids

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

In the water cycle , when does water undergo a chemical change