BIOL 2050 Chapter Notes -Wolfgang Köhler, Nitrogen Cycle, Insecticide
Document Summary
Henderson, minnesota: leopard frogs (rana pipiens) 11 of the 22 frogs were deformed (missing or extra limbs etc. ) 30-40% of frogs deformed at pond (figure 1. 1) Usa 46 states with deformed amphibian species world-wide issue. 1980, 9 amphibian species extinct, another 113 species not seen/ possibly extinct from 2009 (figure 1. 2) Lives spent on water and land therefore wide range of potential threats: water and air pollution, temperature changes, uv light. Humans have enormous impact on planet: global climate changes: Ocean deterioration declined fish stocks, Natural systems are driven by the ways in which organisms interact with one another and with their physical environment. Ecology: the scientific study of how organisms affect and are affect by other organism and their environment. Events in the natural world can be linked or connected to one another: they occur as organisms interact with one another and with their environment.
