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The fish, dog, and bird are
alike in many ways. One way
is that they all have —
A legs
B hair
C lungs
D backbones


Sagot :

D. Backbones.

All of the animals listed are vertebrae, a classification of animals that means they have backbones. Fish do not have legs, lungs, or hair, and birds lack hair as well. 
D.) backbones
Fish don't have legs nor hair nor lungs (they have fins,scales,and gills)
Though all of them do have backbones