Answer:
carbon dioxide passes from the blood into the alveoli and is then exhaled. Oxygenated blood travels from the lungs through the pulmonary veins and the cycle goes on every time you breath or inhale you inhale oxygen into your blood cells.
Explanation:
Since smokers are not allowed to smoke within restaurants, office buildings, airports, schools, and many other places, far fewer people are being exposed to secondhand smoke. People with asthma and allergies to cigarette smoke are now able to breathe more easily as well. Children are no longer being exposed to secondhand smoke in spaces outside of their homes.
This is a false statement. There is a big difference between feeling the burn and feeling pain, if you are feeling pain it could mean that you have pulled a muscle and you should stop and consult your doctor, also if you are feeling back pain that means you maybe pinched a nerve or slipped the disc. Lastly, other signs pain you should look for is ankle pain and feeling lightheaded because ankle pain could indicate a sprain and lightheaded can indicate that you are either overworked yourself or you are not getting enough water consumption.
Answer:
A. I only is the answer of this question
Lowering the cost and time needed to conduct trials can promote market competition, help check drug prices, and bring patients innovative medical products earlier.
