The digestive system contributes to the success of birds as flying animals because
A)it is long.
B)the crop can store huge quantities of food.
C)it digests food quickly.
D)it is penetrated by air sacs.
E)it has a high sense of taste to reject toxic foods.

Question

Quizplus · Accepted Answer

The digestive system of birds is adapted to digest food quickly, which is crucial for maintaining a light body weight necessary for flight. Quick digestion allows birds to efficiently convert food into energy without carrying the extra weight of undigested food for long periods.

The Digestive System Contributes to the Success of Birds as Flying