Multiple Choice
Max works out about an hour every day using aerobic machines at a gym. During his moderate physical exercise, blood concentrations of
A) oxygen and carbon dioxide increase.
B) oxygen and carbon dioxide remain nearly unchanged.
C) oxygen decrease and carbon dioxide increase.
D) oxygen increase and carbon dioxide decrease.
Correct Answer:

Verified
Correct Answer:
Verified
Q62: Smokers are more susceptible to respiratory infections
Q63: Which of these laryngeal cartilages is unpaired?<br>A)Cricoid<br>B)Arytenoid<br>C)Corniculate<br>D)Cuneiform
Q64: Coughing reflexes become faster with age.
Q65: Pneumothorax is a condition in which air
Q66: The airplane you are riding suddenly depressurizes
Q68: "I'm going to hold my breath until
Q69: Gas exchange occurs across alveolar pores.
Q70: The airplane you are riding suddenly depressurizes
Q71: The ease with which the lungs can
Q72: In a mixture of gases, each gas