In this chapter, we have learned about energy transform. Energy is transformed in chemical reactions, I have drew a picture of the life balance to prove organism’s relationship, between cellular respiration and photosynthesis are what they adapted for and essential for their survival. Photosynthesis (chemical equation: 6CO2+ 6H2O) add solar energy can produce glucose and oxygen (C6H12O6+6O2)and it is necessary to human ‘s respiration, then our respiration produce carbon dioxide (6CO2) and reabsorbed by trees and produce Photosynthesis. It can be seen that this is a cycle, which proves how wonderful nature is, and we and nature are interdependent and connected.