Fish that live in freshwater life zones may need to be well adapted to swimming in fast moving water. true false

Where can you find prokaryotic and eukaryotic cells?

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.