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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 flyI have been asked this question in an interview.This is a very interesting question from Animal Kingdom in portion Animal Kingdom of Biology – Class 11

Answer»

The CORRECT choice is (b) Air sacs are sites of gas exchange in Avian Dinosaurs

The explanation is: The AVES have hollow BONES and help them to fly. Air sacs are not sites of gas exchange in Avian Dinosaurs. Humming BIRD is the smallest bird. Ostrich and penguins are few birds that can’t fly.



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