The gyri and sulci on the brain greatly increase the brain’s surface area. how do you think this increase in surface area relates to improved brain function?

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds