________ is associated with a chronic productive cough, a decrease in the inner diameter of the airways, and swelling and inflammation of the airways.
A. Asthma
B. Emphysema
C. Chronic bronchitis
D. Bronchiectasis
Answer: C
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Is genetic diversity due entirely to inherited genes on the sex chromosomes?
A) Yes, because the female has two X chromosomes and the male has only one X chromosome. B) Yes, because genetic diversity is due to the Y influence on the autosomes. C) Yes, because the male has a Y chromosome. D) No, because genetic diversity has nothing to do with the sex chromosomes but is due to crossing-over of chromosomes, independent assortment of chromosomes, and segregation of chromosomes.
Tubular secretion of potassium
a. is controlled by the distal portions of the nephron. b. occurs through the sodium potassium pump. c. is minimized due to reabsorption in the proximal tubule. d. involves passive diffusion from the tubular cell to the lumen. e. all of these.
What is covered by the endomysium?
A) fascicles of muscle cells B) an entire muscle C) an individual muscle cell D) myofibrils E) smooth muscle only
When someone begins to hyperventilate, the increased movements of their respiratory muscles ________ venous return of blood to the heart.
A. decrease B. increase