ndividuals with tolerant alleles have growth rates on unpolluted soil and growth rates on mined soils. Therefore, we would expect copper tolerance to be % on mine sites and % on unpolluted sites if natural selection is acting alone. However, index of copper tolerance decreases from the downwind side of the mine. This is example where constrains selection.

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas