Ecosystems > Species |
Ecosystems subtopics | Alphabetical List of All Topics |
A healthy diversity of plant and animal species is essential to the nation's environment. In addition to its varied native species, the United States is home to many other introduced species. The relationship between plant and animal species and the ecosystems in which they exist is fundamental. Understanding and protecting this relationship from the effects of pollution is an important part of the EPA's mission as is the protection of the nation's endangered species. Recommended EPA Web pages |
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