"Edge effects" become particularly problematic when
A. forests undergo biodiversity changes as a result of climate change
B. trying to manage and protect island biodiversity
C. preserves have a very large area and a roughly circular shape
D. formerly large habitats are reduced to small fragments
Ans: D. formerly large habitats are reduced to small fragments
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Which of the following statements is true?
a. Temperature inversions occur when a layer of cold air prevents warm air from rising. b. Temperature inversions exacerbate pollution problems. c. Temperature inversions last only a few minutes to a few hours. d. Normally, cool air near Earth's surface expands and rises, carrying pollutants higher into the troposphere. e. Temperature inversions help prevent air pollution.
Cyanobacteria (blue-green algae) are an example of a heterotrophic organism
a. True b. False
What is a producer of photosynthesis?
What will be an ideal response?
Throughout any introductory examination of ecosystems and environmental sustainability, the importance of human population numbers is cited. Currently, the world and U.S. populations are closest to ________
A) 3 billion; 300 million B) 9 billion; 400 million C) 7 billion; 500 million D) 7 billion; 200 million E) 7 billion; 300 million