Why is it important to classify the millions of species on earth

There are millions of species that exist on Earth.  This helps in organizing each specie according to the characteristics, and traits. The classification is done to show the hierarchy and focuses on the relationships that the organisms possess with other organisms about evolution.

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.

option c is the correct answer.