Essay_Key_Exam_2

Essay_Key_Exam_2 - Bio9 Fall 2007 Essay Key Exam 2 Due to...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Bio9 Fall 2007 Essay Key Exam 2 Due to several instances of cheating on Exam 1, it took me much longer to finish grading. It’s happened again for Exam 2. When this happens, we all suffer. It’s time-consuming and unpleasant. For the next exams, if I even see a hint of copying, you will receive a zero for the entire class. One critical mistake students make is not realizing the importance of being able to use your own words to answer questions. When someone asks you about a problem or solution, will you run to a book and read it to them? More significantly for you, do you know that passing off others’ exact words and ideas as your own is plagiarism (theft), punishable by law or in the case of students, expulsion from school? I state this very clearly in my instructions. Luckily, you are not a class of science majors, and I only will give you a zero for stolen work. Do yourself a favor and do not copy from fellow students, the text, the web, or any other source. 1. What is the current population of the world? 1 point ~6.5 -6.64 billion 2. What is its current growth rate? 1 point 1.167% currently, and going down with each year: 1.14% in 2007, 1.25% in 2004. If you gave an older, less precise figure without citing the year, I did not give credit. If you used the rounded figure “1.2%”, but did not cite the year, you received half credit. Even a tenth of 1% equals a huge difference in population growth. Do the calculation…) 3. If a country has a growth rate of 1.7 %, how long will it take for its population to double? (Show calculation) 1 point rule of 70 => 70/1.7 = 41 years 4. What spectacular biome (considered a complex zonation) is known as “islands of biodiversity”? 1 point Mountains 5. List the top 3 areas of greatest marine biodiversity. 3 points Coral reefs, estuaries, deep-sea floor - p. 179. NOT open ocean. Remember Net Primary Productivity from Unit 1? In Figure 3-20, compare “open ocean” with “estuaries”! And of course, the “zones of the ocean” wouldn’t make sense as an answer to this biodiversity question. 6. Name 6 things you and others can do to help sustain terrestrial biodiversity? Be specific to the issue. 3 points Fig. 8-27
Image of page 1

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

View Full Document Right Arrow Icon
For questions 6 and 8: #6 and #8 emphasize how reducing demand is the quickest, cheapest, most natural way of preventing problems like extinction and biodiversity loss. Don’t buy anything from the wild. *****I gave partial credit for other ideas if you showed relevance to this particular issue. ***** Good student answer: To help sustain biodiversity of the earth's lands I can plant trees, use only recycled paper to prevent the cutting of more trees, recycle my paper to cut down on waste and to provide paper to be recycled and reused, (when I do have to buy something new and made of wood or paper products) only buy products from trees that were grown and harvested sustainably, nurture trees and plant new ones, live in the city instead of the new suburban developments (because sprawling suburbs destroy more and more habitat), rehabilitate degraded lands, and landscape my yard with diverse local plants (which are well suited to the climate and will encourage local wildlife diversity).
Image of page 2
Image of page 3
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