Which of the following is not true of the diving reflex? (a) breathing stops (b) the heart slows (c) less blood is distributed to the muscles (d) metabolic rate increases by about 20% (e) energy consumption decreases

Daniel, the swimmer with the fastest time on the college swim team, routinely hyperventilates before a meet, as he says "to sock some more oxygen into my lungs so I can swim longer without having to breathe." "Furthermore, my heart won't have to adjust it's output". Which organ(s) would actually require more oxygen that Daniel may not be realizing? Why so?

Shorty McFleet noticed that his rate of respiration was elevated after running a 100- meter race (dash), but not as elevated after running slowly for much longer distance. How would you explain this?

Both the elastic property of the lung and the air :water interface contribute to the overall recoil of the lung. What are the relative contributions of the elastic property and the air: water interface to the recoil of the lung? A)both contribute equally to the recoil of the lung. B)the elastic tissue contributes ~33% to the recoil of the lung. C)the air:water interface contributes ~33% to the recoil of the lung. D)the elastic tissue contributes ~67% to the recoil of the lung. E)the air:water interface contributes ~90% to the recoil of the lung.   With respect to LaPlace's Law, the amount of pressure needed to keep alveoli open when surfactant is missing will be A)increased B)decreased C)stay the same E)all of the above