According to the passage, the emphasis on preserving biodiversity in forests has had which of the following effects? A. diverted attention from the importance of the land's ability to support life. B. led to recognition of the complex causes of terrestrial communities. C. led to an understanding of the causes of accelerated rates of global warming. D. resulted in the formulation of the concept of biotic resources. E. shifted attention away from the role of forests in stopping the accumulation of carbon dioxide in the atmosphere.