Joe places a whole orange on a scale and finds that the reading on the scale is the same as when he cuts the orange into segments and places all of the segments on the scale at one time. The readings on the scale show an example of which scientific law?

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

the answer will be a) proteins i believe

there's the proffessional site that will you.