The macromolecules in biochemistry are proteins, carbohydrates, lipids, and nucleic acids. what main elements do all of these have in common? a) carbon and sulfur b) carbon and hydrogen c) oxygen and nitrogen d) oxygen and phosphorus

Answer:

The main elements that are present in proteins, carbohydrates, lipids, and nucleic acids  are

B)carbon and hydrogen

C) oxygen and nitrogen

Explanation:

In common they have hydrogen, carbon, oxygen as well as nitrogen.  Nitrogen are the reduced form so as the major component among the three others. It helps in the formation of the proteins and the polypeptides, DNA and RNA also in the formation of polymers of the amino sugars. Proteins are made from the carbon, hydrogen, oxygen, as well as nitrogen. The nucleic acid like DNA and RNA has carbon, hydrogen, oxygen, nitrogen and the phosphorus in it. The body also requires small amount of calcium, potassium and sulphur for the proper functioning of the muscles as well as the nerves.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.