Which macromolecules are often made of three fatty acid‘s bond to a glycerol molecule. a. proteins b. lipids c. carbohydrates d. nucleic asids

Answer . These two molecules form what is known as a triglyceride or a fat. Two common forms of triglycerides are saturated and un saturated fats.. so basically lipids

B. Lipids.

it's B. Lipids for apex

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.