If Archaeopteryx had air sacs, then which of its features would have had the opposite effect on enabling Archaeopteryx to fly long distances from that provided by air sacs?
1)teeth
2)contour feathers
3)wing claws
4)long tail with many vertebrae
A) 1 and 2
B) 1 and 4
C) 2 and 3
D) 1, 2, and 4
E) 1, 3, and 4

Question

Quizplus · Accepted Answer

Teeth and a long tail with many vertebrae would have added weight, making it harder for Archaeopteryx to fly long distances, while wing claws could have impacted its aerodynamics negatively. Air sacs, in contrast, would have lightened its body and improved respiratory efficiency, aiding in flight.

If Archaeopteryx Had Air Sacs, Then Which of Its Features