The answer is true c:
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That site has a lot of study guides for tests with the exact questions and answers that would be in a lesson or text so you can get the best help
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1.On average, a person at rest takes about 16 breaths per minute. This means we breathe about 960 breaths an hour, 23,040 breaths a day, 8,409,600 a year. Unless we get a lot of exercise. The person who lives to 80 will take about 672,768,000 breaths in a lifetime. If the heart muscle contraction is intact, the condition is known as respiratory arrest. An abrupt stop of pulmonary gas exchange lasting for more than five minutes may damage vital organs especially the brain, possibly permanently. Lack of oxygen to the brain causes loss of consciousness.
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Answer questions and get answers.
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an unhealthy diet is to cardiovascular as viruses are to the common cold