shrimps don't really have either. They certainly dont have scales. You could call some of the paddle like structurs in pelagic shrimp 'fins' but i probably wouldnt.
No, they have an exoskeleton, but don't have scales. They don't have fins either.
Yes, they do have both fins and scales.
Yes all species of Tuna have both scales and fins.
Most. There are very few fish that have no scales and all fish have fins.
There are many classes of fish which do not have scales nor fins. The Agnatha has neither fins nor scales; the Condrichthye, including sharkes, rays and skeats have fins but no scales; the Ostichthyes, of which several families have members with the common name, mackerel, with both scales and fins. The King Mackerel, S. cavalla, has very tiny scales and fins.
yes
Water animals must have scales and fins to be considered kosher.
No, fish must have both scales and fins.
yes they are in their stomach
No it does not have scales, and yes, it has fins
Yes all tuna have fins and scales
Tilapia fish has fins and scales like any other fish. The tilapis fins and scales are less difficult to remove.
Yes, although they don't look exactly the same as fish scales, if you look closely their bodies are covered in scales and very small fins.