B.
Homogeneous means one mixture, so like salt water. It looks like one mixture.
Heterogenous means different mixture. Comparable to a bag of Chex mix. So if the magnet can attract the pieces of Iron, it has to be a separable mixture. Compounds would require a chemical reaction to separate.
Answer:
monomer of carbohydrates glucose,sucrose,fructose
polymer of carbohydrates starch,cellulose,glycogen
monomer of protein amino acids
polymer of protein polypeptides
monomer of nucleic acid nucleotides
polymer of nucleic acid DNA
polymer of lipids triglycerides
monomer of lipids 3 fatty acids and glycerol
One reason is if someone is injured and needed to use pain pills, sometimes they get addicted to it
