1. Copyright © 2009 Pearson Education, Inc. Active Lecture Questions for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey Chapter 38 Conservation Biology

2. Copyright © 2009 Pearson Education, Inc. Concept Check Currently the single greatest threat to global biodiversity is 1)habitat destruction. 2)organism exploitation (overharvesting.) 3)introduced species. 4)illegal harvesting.

3. Copyright © 2009 Pearson Education, Inc. Answer Currently the single greatest threat to global biodiversity is 1)habitat destruction.

4. Copyright © 2009 Pearson Education, Inc. Concept Check Currently, towards the end of each summer there are millions of monarch butterflies in eastern North America. Why then are scientists concerned about monarch conservation? 1)Summer habitat destruction. 2)Herbicide and pesticide use. 3)Too many monarchs are destroyed by automobiles and trucks during migration. 4)The vast majority of monarchs in eastern North America winter in one, small restricted habitat, in Mexico.

5. Copyright © 2009 Pearson Education, Inc. Answer Currently, towards the end of each summer there are millions of monarch butterflies in eastern North America. Why then are scientists concerned about monarch conservation? 4)The vast majority of monarchs in eastern North America winter in one, small restricted habitat, in Mexico.

6. Copyright © 2009 Pearson Education, Inc. Science and Society One area where carbon dioxide emissions could be reduced in the U.S. is automobile use. Gas mileage and miles driven directly relate to carbon levels released. As a knowledgeable energy consumer, would you consider purchasing a hybrid vehicle to reduce your individual carbon output even if the costs were $2-3,000 more per car? Disagree Agree Strongly A B C D E Strongly

7. Copyright © 2009 Pearson Education, Inc. Science and Society The Great Plains has been described as the Saudi Arabia of wind power. Wind farms are showing great promise as sources of renewable electrical energy. However, the towers impinge on the wide-open vistas of the plains. Off the coast of Cape Cod a proposed wind farm has met opposition from locals as well. Do you think that implementing clean energy wind farms should take precedent over objections due to aesthetics? Disagree Agree Strongly A B C D E Strongly

8. Copyright © 2009 Pearson Education, Inc. Science and Society Biodiversity is one of earth’s imperiled natural resources. Estimates of species loss vary—in part because scientists only have estimates of the number of species on the planet. In the soil of your backyard there are likely undescribed organisms, unknown to science. The immensity of the task of naming, classifying and keeping track of organisms on earth is overwhelming—even amateur scientists can contribute. Many avocations or hobbies have the potential to provide valid data about earth’s biodiversity. Do you have a nature interest or hobby (such as bird watching)? Disagree Agree Strongly A B C D E Strongly