Here's a breakdown:
* Reptiles: They have dry, scaly skin that helps them conserve water, and they breathe air using lungs. Examples include snakes, lizards, turtles, crocodiles, and alligators.
* Fish: They have scales that help protect their skin and reduce friction in the water. They breathe underwater using gills. Examples include salmon, sharks, tuna, and goldfish.
There are some exceptions:
* Amphibians: While they are vertebrates, they don't have scales like reptiles or fish. Their skin is smooth and moist, and they can breathe through their skin as well as lungs. Examples include frogs, toads, and salamanders.
Let me know if you'd like to learn more about any of these animal groups!