Why are eels in the same phylum as the vertebrates?

Describe how the scales are arranged on the trunk and tail of a perch? What is the function of backward slanting teeth in a fish? Do Whale Sharks Eat Seals On Shore? How many types of enteroviruses are there? How human differ from fish with regards to respiratory function? What fish has a four letter name? what are enemies of the eel? What happens if an abscessed tooth ruptures? How do i replace clutch in a holden rodeo 4x4 turbo diesel? How do you care pregnant molly fish? How are fish in ponds that have not been stocked? Why are sharks skates and rays places in their own class? How man people a year die from a falling air conditioner? Can soap residue kill a goldfish? Are bull sharks aggressive or docile? Why 156 fish what is the significance? How long does a black molly egg? how does swordfish kill there food? Can you put a 125 gallon aquarium in your living room? What are benefits of koi herbal?