A bird's wings are homologous to:
a. an alligator's claws.
b. a fish's tail fin.
c. a dog's front legs.
d. a mosquito's wings.



Answer :

A bird's wings are homologous to c. a dog's front legs.


Homologous means 'having the same relation, relative position, or structure, in particular' - OxfordDictionaries 

So the answer is D.


Hope this helps!


-Flamepool