NRES 100 UIUC Exam 1| 93 Questions| With Complete Solutions

Sustainable correct answer: management of natural resources and the environment with goals of allowing the harvest of resources to remain at or above a specified level, ecosystem retains its functions and structure Unsustainable correct answer: a system that cannot grow or survive on its own, is not renewed overtime so it cannot continue any longer. Biogeochemical Cycling correct answer: The flow of chemical elements and compounds between living organisms and the 4 major physical reservoirs: atmosphere, hydrosphere (waters), lithosphere (rocks and soil), biosphere Theory correct answer: Broad fundamental explanations of many observations; most reliable, rigorous, and comprehensive form of scientific knowledge Succession (Two different types of succession—primary and secondary) correct answer: the process by which the structure of a biological community evolves over time. Primary Succession correct answer: occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited. Secondary Succession correct answer: series of community changes which take place on a previously colonized, but disturbed or damaged habitat. Examples include areas which have been cleared of existing vegetation (such as after tree-felling in a woodland) and destructive events such as fires.