test write essay
- Discuss the interrelationship between sea otters, sea kelp, and sea urchins. Be sure to include in your answer the concept of what a keystone species is and which species of the three is the Keystone species. What keystone species was reintroduced into Yellowstone Park and what was the impact? (12 points)
- Discuss the difference between a native species, an introduced species, and an invasive species? What impact do introduced and invasive species have on food webs? (8 points)
- What are evolution and natural selection? Describe how species adapt to the environment? How do humans use artificial selection? (15 points)
- How does biodiversity enhance stability in an ecological community? How are humans impacting biodiversity? Why is suburban landscape dominated by lawn so bad for biodiversity?