(02.02 lc) during exercise, the amount of carried in the blood to the muscles increases. a) oxygen b)carbon dioxide c)energy d) calories

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.