How does an organism obtain energy from the food they eat?

Other organisms eat green plants (which has a store of the energy they produce) to obtain energy. These organisms are known as consumers. Rabbits and sheep are examples of consumers. Herbivores, carnivores and omnivores are all consumers, and they all have to go find food to give them energy.

creative diagnostics provides a protocol for total protein extraction based on ripa which is widely used.

"d.) carbon dioxide and hydrogen sulfide"