An compound is made up of carbon and other elements.
a. organic***
b. original
c. inorganic
d. internal living systems are made of complex molecules including carbohydrates, fats, proteins, and nucleic acids. even though there are more than 100 elements known to exist, these molecules are comprised of only a few elements. what are these elements?
a. sodium, potassium, calcium, nitrogen, phosphorus, sulfur
b. carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus
c. carbon, hydrogen, oxygen, fluorine, chlorine, iodine
d. fluorine, chlorine, iodine, nitrogen, phosphorus, sulfur