Answer :

dansi902
aves :-
 ⇒warm blooded 
 ⇒breath by lungs 
 ⇒feathery skin 
  ⇒heart having 4 chambered 
reptilia :-
 ⇒cold blooded 
 ⇒breath by lungs 
 ⇒scaly skin 
 ⇒3 chambered heart 

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