BIODIVERSITY	"Biological diversity is the variety and variability among living organisms and the ecological complexes in which they occur. Diversity can be defined as the number of different items and their relative frequency. For biological diversity, these items are organized at many levels, ranging from complete ecosystems to the chemical structures that are the molecular basis of heredity. Thus, the term encompasses different ecosystems, species, genes, and their relative abundance."  - U.S. Congress Office of Technology Assessment, "Technologies to Maintain Biological Diversity," 1987:				PERMACULTURE
INVASIVE PLANTS AND ANIMALS WASHINGTON STATE GLOBAL ISSUES BIODIVERSITY HOT SPOTS CONSERVATION INTERNATIONAL	Essential Questions: How might medicine be different if biodiversity had been decreased at its current rate for the last 100 years? What is the best approach to ending the decrease of biodiversity in South America? At what point of special endangerment is it impossible for a population to reach normal numbers again ?
RETURN TO ECOLOGICAL EXPEDITION	View Video

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