Cells do not use the energy from oxidation reactions as soon as it is released. Instead, they convert it into small, energy-rich molecules such as ATP and nicotinamide adenine dinucleotide (NADH), which can be used throughout the cell to power metabolism and construct new cellular components.
Another difference is that deer antlers are branched and antelope horns are not. Antelopes belong to family Bovidae (as do sheep, goat and cattle), while deer belong to family Cervidae. Both are even-toed ungulates (hoofed animals) and ruminant mammals.
The two breeds of mini goats are the pygmy and Nigerian dwarf goat. They are similar in size and personality but they do differ in some characteristics. The pygmy goat is bred for meat or as pets. Nigerian dwarf goats are bred for their milk production. Both the pygmy goat and Nigerian dwarf goats are becoming popular because they make excellent pets.