Introduction:
The brain directs the rate of breathing by responding to internal stimuli that indicate how much oxygen the body needs. When the concentration of carbon dioxide in the blood is high, the breathing rate increases because cells need more oxygen.
Answer to Problem 22A
Correct answer:
The correct answer is option (c) about 17,000.
Explanation of Solution
Explanation/justification for the correct answer:
Option (c) about 17,000. The normal respiratory rate for healthy individuals was around 12 and 20 breaths per minute. If a person takes 12 breaths per minute then breaths a person take in one day is about 17,000. The average person breathes 17,280 breaths a day.So, the correct answer is option (c).
Explanation for incorrect answer:
Option (a) about 1000. When a person takes 12 breaths a minute then a person wouldtake about 17,000 breaths in one day.So, this is an incorrect option.
Option (b) about 10,000. When a person takes 12 breaths per minute, then a person takes about 17,000 breaths in one day.So, this is an incorrect answer.
Option (d) 1,000,000. If a person takes 12 breaths per minute, a person takes about 17,000 breaths in one day.So, this is an incorrect answer.
Chapter 34 Solutions
Biology Illinois Edition (Glencoe Science)
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