Vertebrates include fish, amphibians, reptiles, birds, and mammals. Analyze the common characteristics of reptiles and explain how they differ from mammals. Explain your answer in one or two sentences. (2 points)
Common characteristics of reptiles include having scaly skin, cold-blooded metabolism, laying eggs, and having a three-chambered heart. Reptiles differ from mammals in that they do not have hair or fur, they lay eggs (most mammals give live birth), and they have a different respiratory system (reptiles breathe using lungs, while mammals have diaphragms).
