In order to fly,birds must have which of the following adaptation(s)?
A)A lightweight skeleton
B)A highly efficient respiratory system
C)A high-pressure circulatory system
D)Well-developed nervous and sensory systems
E)All of these adaptations are necessary for flight.

Question

Quizplus · Accepted Answer

All of the listed adaptations are necessary for birds to be able to fly. A lightweight skeleton is necessary to reduce the weight of the body, making it easier to lift off the ground. A highly efficient respiratory system is necessary to provide enough oxygen to the muscles required for flight. A high-pressure circulatory system is necessary to pump oxygenated blood quickly to the muscles during flight. Finally, well-developed nervous and sensory systems are necessary to allow the bird to navigate in the air and avoid obstacles.

In Order to Fly,birds Must Have Which of the Following