Question

How does a faster-pumping heart affect the cheetah?

A. Carbon dioxide rich blood gets to its muscles faster, helping the cheetah run
B. Oxygen-rich blood gets to its muscles faster, helping the cheetah run
C. Blood travels through its body slower, helping the cheetah run

Answer 1

B. Oxygen-rich blood gets to its muscles faster, helping the cheetah run.

Explanation:

Most large organisms respire aerobically, where oxygen is needed to produce energy. If the heart is able to pump oxygen-rich blood faster to the muscles of the cheetah, their muscle cells can produce more energy at a faster rate.