Similarities and differences between bony and cartilaginous fish.

Differences:
1.Class cartilaginous has a skeleton cartilaginous, and class bony has a skeleton bony
2 cartilaginous ones have gill slits, bone ones do not
3.Cartilaginous – viviparous, bone – spawning

Similarities:
1. Belongs to the superclass of fish
2.Has fins
3.Double gills



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