Two trends in the evolution of early humans are… A Increasing hair and decreasing skull volume.

B Increasing arm to body ratio and decreasing height.

C Increasing skull volume and decreasing hair.

D Increasing height and stable skull volume.

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 correct option is option d

c. live where it’s cold and icy