Adaptive mechanisms, such as ____, can help animals live at a high elevation.
A) carbonic acid
B) a large heart
C) hemoglobin with more heme groups
D) decreased nitric oxide
E) small efficient lungs

Question

Adaptive mechanisms, such as ____, can help animals live at a high elevation.
A) ​carbonic acid
B) ​a large heart
C) ​hemoglobin with more heme groups
D) ​decreased nitric oxide
E) small efficient lungs​

Quizplus · Accepted Answer

Animals living at high elevations often have a larger heart to pump more blood and deliver sufficient oxygen to tissues in low-oxygen environments.

Adaptive Mechanisms, Such as ____, Can Help Animals Live at a High