What trait does salmon have that an earthworm does not?

Salmon have the jaw but the earthworm does not have it.

Explanation:

Each of the organism has an evolutionary relationship with each other. Their current forms are derived from the branching events of the phylogenetic past. Both earthworm and Salmon are multi cellular organisms. They have a segmented body. The one trait that a salmon does have is a jaw.  

The fishes were the first organism to have a vertebrae. In the Ordovician period the fish vertebrate was well formed. Then there was variations happening in the morphology of a fish but it did not have jaws at that time. Then they later developed jaw.

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