How multicellular Eorganisms go through the process of specialization and
differentiation.

answer; i believe the answer is (polygenic inheritance;

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!

answer an inhibitory neurotransmitter in the brain;