what do birds fly?
{ A.} they have beautiful feathers
{ B.} they have scales all over their body
{ C.} they are warm-blooded vertebrates
{ D.} they have light hollow bones and wings
{ A.} they have beautiful feathers
{ B.} they have scales all over their body
{ C.} they are warm-blooded vertebrates
{ D.} they have light hollow bones and wings
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Answer:
what do birds fly?
{ A.} they have beautiful feathers
{ B.} they have scales all over their body
{ C.} they are warm-blooded vertebrates
{ D.} they have light hollow bones and wings