Which of the following is not a characteristic of Aves?
(A) Presence of feathers, wings and beak... VIDEO
Which of the following is not a characteristic of Aves?
(A) Presence of feathers, wings and beak
(B) Fully ossified endoskeleton with pneumatic bones
(C) Completely four-chambered heart
(D) Lack the capacity to regulate their body temperature
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