If animals are fighting for food (competition) they'll be forced to kill each other or go hungry. Predation is simply when animals kill things for food. So basically it's just a whole lot of killing.
The law of conservation of matter is that matter cannot be destroyed, it can only be changed. Really, any cycle is an illustration because, in cycles matter is not destroyed, only changed.
In simple words: The hydrologic cycle illustrates the law of conversation of matter through the matter in this cycle not being destroyed, only changed.
Answer:
The code in DNA is stored in the four chemical bases (Adenine, guanine, cytosine and thymine) which are found in the genes. These include the information the cell needs to make specific proteins. Each base pair is made from 2 complementary nucleotides (either A+T or G+C) and bound together with hydrogen bonds.
Population growth comes from a balance between food supply and predators. When pray increases food supply decreases, since they are eating them alot. As a result some of the prey dies off since there isn't enough food for them. Then the food supply increases but then suddenly dies off after pray comes backs and eats them. As a result the cycle continues
