Unit 2 Review Questions

Vocabulary

adaptation
cladogram
Darwin
evolution
fossil record
genetic shuffling
genetic variation
geographic isolation
geologic time
gradualism
homologous structures
Lamark
mutation
natural selection
overproduction
punctuated equilibrium
reproductive isolation.speciation
struggle for surival
variation
vestigial

 

Essential Questions

Taxonomy

  1. Why was Linnaeus' systems selected over previous systems?
  2. What does the scientific name of an organism tell you about it?
  3. List the major taxons from broadest to most specific.
  4. What is the purpose of a classification system?
  5. How does a taxonmic key help to identify unknown organisms?

 

Evidence of Evolution

  1. Where do evolutionists derive the support for their theories?
  2. Why is sedimentary rock important to the study of evolution?
  3. What make structures homologous?
  4. How do cladograms indicate whether two species have a common ancester?

 

Modern Evolution

  1. How are adaptions or "fitness" important in evolution?
  2. How can geographic isolation result in speciation?
  3. Summarize Darwins' theory of natural selection.
  4. Why is the peppermoth a good example of natural selection?
  5. What are the three steps of natural selection?
  6. What are the two causes of variations in species that could eventually lead to evolution?
  7. How do gradual vs. punctuated equilibrium differ when viewed on a time graph?
  8. How do cladograms tell us how closely two species might be related to each other?