Which are vertebrates? a. hamster b. crab c. koala a. alligator Which are vertebrates? d. spider b. fish What do all vertebrates have in common? c. dolphin d. bird a. They live on land. b. They all have a hard internal skeleton or backbone. c. They all have legs. d. They are all warm blooded. Vertebrates include which types of animals? a. Mammals c. Fish b. Amphibians d. Reptiles E. All of the following
Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals. Invertebrates don't have a backbone. They either have a soft body, like worms and jellyfish, or a hard outer casing covering their body, like spiders and crabs.
