The Traditional Classification System Places Birds in the Class

Q9: Reduction of turbulence over the wing surface

Q10: Some birds are helpless at hatching and

Q11: All birds undergo a periodic replacement of

Q12: The _ of the stomach region of

Q13: Evidence seems to indicate that the feathered

Q15: Birds,dinosaurs,and crocodilians are all<br>A)pterodactyls.<br>B)saurentians.<br>C)pterosaurs.<br>D)archosaurs.<br>E)plesiodactyls.

Q16: The brain of a bird has a

Q17: In many birds,a diverticulum of the esophagus,the

Q18: Birds regulate their body temperatures at

Q19: The eyes of some birds have two