Rhoze1119viz Rhoze1119viz Science Answered 12. What is the primary function of the brain? a. Receive and interpret countless signals that are sent to it from other part of the body b. Responsible for the reproduction of bile which aids in breaking down fats. c. Distributes nutrients and oxygen and removes carbon dioxide in the body. d. Filters oxygen that enters our body. that live in water? 12. What is the primary function of the brain ?