Answer:
small fish that rely on lily pads for protection will decrease in population.
Energy is used to break down glucose in the presence of oxygen to produce carbon dioxide and water.
Think of it this way:
DNA inside cells store all the genetic information on a person's looks, eye colour, hair colour etc. It makes them unique. The analogy of being like books in a library basically suggests that in a library there is so much information and every book is different with different knowledge... That's basically what DNA is; millions of different information things.
