Betty is a professional high diver and takes a vacation to a beach she has not visited before. while there, she notices a tall cliff, which she thinks would make an excellent place to practice her diving. which of the following statements about this situation is false? a. it would be safer for betty to practice at home since she is unfamiliar with the area. b. it would be perfectly safe for betty to swim around and make sure the water is deep enough. if she finds that it is, the cliff could be a good place to practice. c. betty could check in town to see if there are any group tours that include supervised cliff diving, instead of diving alone. d. betty could do some research about the area and see if it is a common cliff for diving. if she finds that it is safe, she could then plan another trip with a group of fellow divers to practice at the cliff.

When the dental assistant is seated in the correct position is usually what

If you are caught in a flash flood, or sea water rushing your way, drive to the ground you can find. highest lowest nearest darkest

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!