Semester 2: Unit 7 Natural Selection
Answer the following questions/statements (each number should have a response):
1: A population of rabbits living in the desert have two fur phenotypes, brown and white. Analysis shows that over 3 generations, the brown fur rabbits have increased to 80% of the population. Explain why this occurred? (U7L2)
2: Explain how to distinguish different species by their DNA. (U7L3)
3: Explain why Charles Darwin discovered so many different but related species of finches on the Galapagos Islands. (U7L5)
4: Explain how fossils show evidence for the process of natural selection. (U7L8)
5: How does antigenic drift make it so hard for our immune systems to protect us from viruses like the flu? (U7L6)
6: What is the relationship between skin pigmentation and how close a human population lives to the equator? (U7L7)
7: What happened to the peppered moth population in England during the 1800’s? Why? (U7L7)
