WEEK 7 Assignment

Start by reading and following these instructions:

1. Quickly skim the questions or assignment below and the assignment rubric to help you focus.

2. Read the required chapter(s) of the textbook and any additional recommended resources. Some answers may require you to do additional research on the Internet or in other reference sources. Choose your sources carefully.

3. Consider the discussion and the any insights you gained from it.

4. Create your Assignment submission and be sure to cite your sources, use APA style as required, check your spelling.

5.  LENGTH: approximately 1500 words 


  • Define the following terms: species, speciation, allopatric speciation, and sympatric speciation. Explain how allopatric and sympatric speciation might work and give a hypothetical example of each.
  • What are the two major types of reproductive isolating mechanisms? Give examples of each type and describe how they work.
  • Explain the endosymbiotic hypothesis for the origin of chloroplasts and mitochondria.
  • Name two advantages of multicellularity for plans and two for animals.
  • Outline the major adaptations that emerged during the evolution of vertebrates, from fish to amphibians to reptiles to birds to mammals. Explain how these adaptations increased the fitness of the various groups for life on land.
  • Outline the evolution of humans from early primates. Include in your discussion such features as binocular vision, grasping hands, bipedal locomotion, tool making, and brain expansion.