You have a significant reduction in the amount of pulmonary surfactant. What is the likely effect?
a. The risk of bacterial infection will increase.
b. The risk of having chronic obstructive pulmonary disease will increase.
c. The bronchioles will constrict, which will increase airway resistance.
d. The lungs will be difficult to inflate.
e. Gas exchange cannot occur.
d
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Which of the following syndromes may result from infection by an arthropod-borne virus?
A. Encephalitis, often with a high fatality rate B. Hemorrhagic fevers C. Fevers of undifferentiated type with or without a rash D. All of the choices are correct.
What is the term for the volume of air moved into the lungs every minute?
A) alveolar ventilation B) minute ventilation C) tidal volume D) pulmonary ventilation E) total lung capacity
Cell division in the apical meristems at the tips of a plant that results in increases in height or length is called
A. primary growth. B. herbaceous growth. C. mitotic growth. D. vascular cambium growth. E. secondary growth.
Chainlike bacteria are generally called: