Answer;
-Carbohydrates
Step-by-step explanation;
-Carbohydrates are made up of monosaccharides, and their polymers. The monosaccharides bond together to form polysaccharides, which are the polymers of carbohydrates. The most common monosaccharide is glucose, which is one of the most valuable sugars for all animals and plants.
-The function of carbohydrates is to act as an energy source for storage and structure for all living things. For plants, starch is the chief energy source and cellulose is what provides structure and support. For animals, glycogen supplies energy and chitin provides the structure and support.