A new species of mouse is discovered that can sprint extraordinarily rapidly but also fatigues quickly.How would you expect its muscle composition to compare to that of an ordinary house mouse?
A)more slow oxidative fibers
B)more slow glycolytic fibers
C)more fast oxidative fibers
D)more fast glycolytic fibers
E)fewer fast glycolytic fibers

Question

Quizplus · Accepted Answer

Fast glycolytic fibers have the highest capacity for anaerobic metabolism and produce the most power, but fatigue quickly. This would be beneficial for a mouse that sprints rapidly but also fatigues quickly. Therefore, the new species of mouse would likely have more fast glycolytic fibers compared to an ordinary house mouse.

A New Species of Mouse Is Discovered That Can Sprint