The Following Questions Refer to the Data Shown Below Figure 421
-In an Animal Species Known for Endurance Running Rather

The following questions refer to the data shown below.
Blood entering a capillary bed of a vertebrate was measured for the pressures exerted by various factors.
$$\begin{array} { l c c } & \begin{array} { c } \text { Arterial End of } \\\text { Capillary Bed }\end{array} & \begin{array} { c } \text { Venous End of } \\\text { Capillary Bed }\end{array} \\\hline \text { Hydrostatic pressure } & 10 \mathrm {~mm} \mathrm { Hg } & 14 \mathrm {~mm} \mathrm { Hg } \\\text { Osmotic pressure } & 26 \mathrm {~mm} \mathrm { Hg } & 26 \mathrm {~mm} \mathrm { Hg } \\\mathrm { PO } _ { 2 } & 100 \mathrm {~mm} \mathrm { Hg } & 42 \mathrm {~mm} \mathrm { Hg } \\\mathrm { PCO } _ { 2 } & 40 \mathrm {~mm} \mathrm { Hg } & 46 \mathrm {~mm} \mathrm { Hg }\end{array}$$
Figure 42.1
-In an animal species known for endurance running rather than fast sprinting, which of the following would you expect?

A) a slower rate of oxygen consumption so that its breathing will not have to be accelerated
B) an increase of storage of oxygen in myoglobin of its muscles
C) a relatively slow heart rate in order to lower oxygen consumption
D) a lower pressure of oxygen in the alveoli
E) a much higher rate of oxygen consumption for its size