The center of a bone has a space, or cavity, containing a soft tissue called , in which new blood cells are produced.

Explanation:

It’s called Uranus

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.