ADAPTATIONS OF AERIAL MODE OF LIFE
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forelimbs of bird are modified into life .
shap is streamlined .
exoskeleton is lighter.
there are air sacsin in their body which give them feathers making byouancy
bones are hollow,which decrease wheight , hence making easier to fly.....
shap is streamlined .
exoskeleton is lighter.
there are air sacsin in their body which give them feathers making byouancy
bones are hollow,which decrease wheight , hence making easier to fly.....
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