Multiple Choice
The changes that were necessary to cope with the heavy energy demands of flight in birds include all of the following except
A) efficient respiration.
B) efficient circulation.
C) endothermy.
D) auxiliary air sacs and hollow bones.
E) a three-chambered heart.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q73: Scuba divers use a BCD to control
Q74: If an adult human suffered a traumatic
Q75: Which of the following is considered the
Q76: A friend of yours visited a natural
Q77: The mucous sheet produced by the endostyle
Q78: Which one of the following is not
Q79: Modern humans share the greatest similarities with
Q80: To which group of fishes does the
Q81: Birds,like mammals,can regulate their body temperatures within
Q82: Birds are different from reptiles in all