Which among the following is an incorrect interesting fact about Aves?
A. Their bones are hollow and help them to fly
B. Air sacs are sites of gas exchange in Avian Dinosaurs
C. Humming bird is the smallest bird
D. Ostrich and penguins are few birds that can’t fly
Answer:B
Which among the following is an incorrect interesting fact about Aves?
A. Their bones are hollow and help them to fly B. Air sacs are sites of gas exchange in Avian Dinosaurs C. Humming bird is the smallest bird D. Ostrich and penguins are few birds that can’t fly