I believe the answer is homeostasis :)
Carbon is a very important element to living things. As the second most common element in the human body, we know that human life without carbon would not be possible. Protein, carbohydrates, and fats all part of the body and all conatins carbon.
solid, crystal structure
and definite chemical composition.
organic Is wrong because they need to be Inorganic. Man made is wrong because they have to occur naturally.
Orion is named after a figure from greek myth, a son of Poseidon.
