a9varahalchelseylas a9varahalchelseylas
  • 07-02-2016
  • Biology
contestada

What kind of bones do birds have?
A. hollow
B. narrow
C. thin
D. cartilage

Respuesta :

ScatterBrained ScatterBrained
  • 07-02-2016
Hollow, that's why birds can fly. There is nothing in the bone to weigh them down.
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