QOD: Why would an animal need a backbone?
Why would an animal not need a backbone?
Vocab: Vertebrates and Invertebrates
Vertere: Latin, to turn
BrainPop: Vertebrates. Take notes. List some. (User: pacificlab. PW: brainpop)
BrainPop: Invertebrates. Take notes. List some.
Photo Prompt: Is it better to be a vertebrate or invertebrate? Why?