9 what are the two main processes that lead to new

Info icon This preview shows pages 4–7. Sign up to view the full content.

View Full Document Right Arrow Icon
What is a founder population? 9. What are the two main processes that lead to new gene variations? 10. Assume there is a population of moths that either have black or white bodies and the tree barks are darkly colored. Use the four basic ideas of evolution to explain how the gene frequency of the colored moths may change over time. 11. What is meant by the term biological fitness? 12. Can individuals adapt to an environment? Why or why not? 13. Describe an adaptation. Explain how that adaptation enables an organism to survive and/or reproduce. 14. What is sexual selection? How does it relate to natural selection? 15. What is artificial selection?
Image of page 4

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Name: ________________________________________________ Period: ____ Date: ___________ 16. Research a specific dog breed. The breeder artificially selected for what types of traits for that breed? 17. What is the purpose of domesticating different dog breeds? IV. Speciation: Read pages 324-330 1. What is the difference between micro and macroevolution? 2. What is speciation? Is that a micro or macroevolutionary event? 3. What factor must occur in order to define two closely related populations as separate species? 4. Punctuated equilibrium and gradualism are ideas about the tempo of speciation. What is the difference between the two ideas? 5. Can both P.E. and gradualism occur within the evolution of a species? Explain.
Image of page 5
Name: ________________________________________________ Period: ____ Date: ___________ 6. Fill in the reproductive isolation chart Reproductive isolation mechanism Pre or Post Reproduction Barrier Example Species occur in different areas separated by a geographic barrier such as a river Two types of grass produce fertile offspring in the first generation, but further generations produce sterile plants A plant releases pollen which reaches the flower of another plant, but is unable to fertilize the ovule (egg) Two populations of bugs with different mating rituals are uninterested in mating with each other Bullfrogs mate in permanent
Image of page 6

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern