What do the building blocks represent?
(1) Carbohydrates
(2) Proteins
(3) Lipids
(4) Amino Acids
![What do the building blocks represent 1 Carbohydrates 2 Proteins 3 Lipids 4 Amino Acids class=](https://us-static.z-dn.net/files/d52/a3d5a043e565c2f8a7d43b5226a7af47.jpeg)