1. You find what you believe is a new species of animal. Which characteristics would enable you to argue that it is more closely related to a flatworm than it is to a roundworm?
2. How did the evolution of the jaw contribute to diversification of early vertebrate lineages?
3. Exotic (non-native) animals are a serious problem in the US. Give an example of how an exotic animal has impacted a habitat in the US.
4. Choose one member of phylum Chordata, not including humans, and answer the following items.
a. Identify their class (ex: Reptilia) and briefly explain their characteristics.
b. How are their predators and prey?
c. Identify any treats to human health and how they are resolved.