the _____ breaks down food, absorb nutrients and _____ solid waste. the ______ transports dissolved gases and ______ through the body. the _____ carries oxygen and removes _____ from the blood. organ system work together to carry out important stability and balance, otherwise known as _____ to keep the circulatory, respiratory and digestive system function well, we should exercise regularly, eat _____, avoid smoking and live in a clean peaceful ______.​