1- Name two extinct organisms from different geological ages and explain why each probably became extinct.
2- Explain how each of the five major population characteristics shapes population dynamics.
3- Explain some examples of non-symbiotic and symbiotic mutualisms. What is at least one way that mutualisms affect your daily life?
4- What is a keystone species? What types of organisms does this term often apply to? Identify one such keystone species that supports organisms that are important to you and explain why.
5- Different types of biomes might form in a particular place on land. What factors most strongly influence which biome forms? In a given location, what factors contribute to the type of aquatic system that may form? Give and explain a concrete example.