Atype of healthy fat that lowers blood pressure and decreases the risk of developing coronary artery disease. trans fats good cholesterols carbohydrates omega-3 fatty acids 2)which of the following is true of calcium? it affects the formation and maintenance of skin and mucous membranes. it assists in maintaining healthy bones and a healthy nervous system. it plays a role in the formation of blood cells, muscle, and other tissue. it cells produce energy and is vital to hair growth and health. 3)tiana is planning a cross-country bike journey with her father, so she is pushing herself to bike farther each week to prepare. what might her to meet her goals? increase her caloric intake to give herself more energy increase her intake of fats to burn during her runs decrease her caloric intake to give herself more energy decrease her intake of carbohydrates and increase her fat intake

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!

Which is the lipid molecule that controls what types of molecules can pass though?

Its totally for health > : ) random questions- free points. 1. grab the book nearest to you, turn to page 18, and find line 4. 2. stretch your left arm out as far as you can, what can you touch? 3. before you started this survey, what were you doing? 4. what is the last thing you watched on tv? 5. without looking, guess what time it is 6. now look at the clock. what is the actual time? 7. with the exception of the computer, what can you hear? 8. when did you last step outside? what were you doing? 9. did you dream last night? 10. do you remember your dreams? 11. when did you last laugh? 12. do you remember why / at what? 13. what is on the walls of the room you are in? 14. seen anything weird lately? 15. what do you think of this quiz? 16. what is the last film you saw? 17. if you could live anywhere in the world, where would you live? 18. if you became a multi-millionaire overnight, what would you buy? 19. tell me something about you that most people don't know. 20. if you could change one thing about the world, regardless of guilt or politics, what would you do?