Given those answer options, answer the question: Answer the following question given this paragraph: Vertebrates are animals that have a backbone. All of them are placed in the Phylum Chordata. Modern vertebrates include fish, amphibians, reptiles, birds, and mammals. Only about 5 percent of animal species are vertebrates. Q: What do we call animals that have a backbone and belong to the phylum chordata? A:
A:
vertebrates