Someone fighting fever will have a negative nitrogen level. When someone expands energy and fails to provide enough nutrients to their body to recover, negative nitrogen levels occur <span />
Regular physical activity can improve your muscle strength and boost your endurance. Exercise delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores.
The answer is b sorry if it’s wrong
Answer:
O B. Hierarchical power structures
Explanation:
