Concept:An animal with scales, nares, and a backbone is a vertebrate reptile.Explanation:A toad is an amphibian with smooth, moist skin and no scales.A lizard is a reptile with dry, scaly skin, external nostrils called nares, and a backbone.Rats and bats are mammals that usually have hair or fur instead of scales.Therefore, the animal described matches the characteristics of a lizard.Answer:B. lizard