3. which one of the following foods could be used to give your cells the greatest amount of
energy? a spoonful of sugar, a spoonful of fat, or a spoonful of protein.

A Spoonfull of fat will the cells the greatest amount of energy because 1 gram of fat gives 9 calories while 1 gram of protein and carbohydrate gives 4 calories of energy respectively.

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.