d. In the Balsams, Hairston discovered the removal of an average of 2.8 P. glutinosus within altitudinal erlap zones resulted in an average increase in the density of P. jordani by 1.8 individuals. Based upon these a, how many P. jordani individuals are equivalent to 1 P. glutinosus in the Balsams? e. Write the Lotka-Volterra competition equations for these two salamanders in each mountain range. f. Plot a graph of the isoclines for the competitive interaction between these salamanders in each untain range. Indicate the direction of population growth for both species in each section of the graphs and icate the outcome of competition.

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Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.