What roles do polysaccharides play in living things? storing fat and building proteins storing fat and providing structure storing sugar and storing fat storing sugar and providing structure

the answer is d. chordata

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.