The government established dri. what does it stand for, and how can it ? a. dietary reference intakes; it can to ensure the right balance of nutrients. b. dietary replacement intakes; it can to ensure the right balance of nutrients. c. dietary reference intakes; it can to ensure the right balance of carbohydrates. d. dietary recommended influence; it can to ensure the right balance of nutrients.

The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. the respiratory system does this through breathing. when we breathe, we inhale oxygen and exhale carbon dioxide. this exchange of gases is the respiratory system's means of getting oxygen to the blood. respiration is achieved through the mouth, nose, trachea, lungs, and diaphragm. oxygen enters the respiratory system through the mouth and the nose. the oxygen then passes through the larynx (where speech sounds are produced) and the trachea which is a tube that enters the chest cavity. in the chest cavity, the trachea splits into two smaller tubes called the bronchi. each bronchus then divides again forming the bronchial tubes. the bronchial tubes lead directly into the lungs where they divide into many smaller tubes which connect to tiny sacs called alveoli. the average adult's lungs contain about 600 million of these spongy, air-filled sacs that are surrounded by capillaries. the inhaled oxygen passes into the alveoli and then diffuses through the capillaries into the arterial blood. meanwhile, the waste-rich blood from the veins releases its carbon dioxide into the alveoli. the carbon dioxide follows the same path out of the lungs when you exhale. the diaphragm's job is to pump the carbon dioxide out of the lungs and pull the oxygen into the lungs. the diaphragm is a sheet of muscles that lies across the bottom of the chest cavity. as the diaphragm contracts and relaxes, breathing takes place. when the diaphragm contracts, oxygen is pulled into the lungs. when the diaphragm relaxes, carbon dioxide is pumped out of the lungs. write one paragraph (at least 6 sentences) describing the path of oxygen through the respiratory system. also include why this "order of operations" is the way it is!

Sapphron is 60 inches tall and weighs 90 pounds. use the formula below and a calculator to answer the question about her weight. bmi = weight (in pounds) ÷ [height (in inches)]² x 703 which bmi category fits sapphron? a. 25.2, overweight b. 17.5, underweight c. 18.6, appropriate weight

1. evaluate your personal strengths. what activities and skills are you particularly good at? what do you think self-esteem is? why is having positive self-esteem important? how do the strengths you identified for yourself relate to your self-esteem? (5 points)