Which characteristic sets dinosaurs apart from reptiles?
A)teeth permanently attached to the jaw
B)amniotic eggs
C)flight
D)ball-like head on the upper leg bone
E)permanent bend in the lower leg bone

Question

Quizplus · Accepted Answer

Dinosaurs are distinguished from other reptiles by their unique hip structure, specifically the ball-like head on the upper leg bone that fits into a socket in the pelvis, allowing for a more upright posture.

Which Characteristic Sets Dinosaurs Apart from Reptiles