Cellular respiration is a chemical process in which the bonds of food molecules and oxygen molecules are broken and new compounds that can transport energy to muscles are formed. Cellular respiration releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment.
Hello. The answer is zinc.
Lipids contain more energy than carbohydrates because they contain more carbon to hydrogen bonds.
Electricity could be discovered using batteries based on zinc or lead, but without copper wiring it would remain little more than a scientific curiosity. Electric motors and generators require large amount of wiring, so they are impossible to build on large scale in this world