An isolated population of great purple hairstreaks, a species of butterfly, lives in a damp meadow. the larvae feed only on a
species of mountain clover plant that lives in the meadow. the adult does not fly far from the clover plants as well. one rainy
summer, a fungus causes most of the clover plants to die.

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.