Multicellular organisms contain organ systems. Which of the following BEST describes the organs in an organ system? *

is this a psat question, if so do not cheat try your best.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it