Bio 220 gcu - Study guides, Class notes & Summaries

BIO 220 Exam 1 Study Guide GCU with Complete Solutions

BIO-220 GCU Final Exam Questions And Answers Hydrologic Cycle - ANS Water evaporates from moist surfaces, falls as rain or snow, passes through living organisms and returns to the oceans. How much water evaporates each year from the world's oceans? - ANS 500,000km Three principal factors controlling global water deficits and surpluses: - ANS Global atmospheric circulation, proximity to water sources, and topography. Rain Shadow Effect - ANS Cool, dry air descends from the m...

BIO 220 Exam 3 GCU with complete solution

BIO 220 Exam 3 GCU, Exam Questions & Answers, 100% Accurate, VERIFIED. genetic diversity - -measures variety of different versions of same genes within a species species diversity - -measures number of different kinds of organisms within a community ecological diversity - -measures richness and complexity of a community fragmentation/cloning - -aspens, less genetic diversity species richness - -total number of

BIO 220 Exam 2 GCU Questions And Answers Factors that limit population size - ANS disease, war, and famine Carrying Capacity - ANS The amount of people the Earth can hold and support. Malthus - ANS Human population growth causes environmental degradation. Marx - ANS Population growth results from poverty and resource depletion. Crude birth and death rates - ANS The amount of deaths and births in a year per thousand. Total Fertility Rate - ANS Number of children...

2 most important organic chemical sources: - 1. Improper disposal of industrial and household wastes. 2. Runoff of pesticides from fields, roadsides, golf courses, and lawns. Aquifers - Porous layers of sand, gravel, or rock lying below the water table. Artesian - Pressurized aquifer intersects the surface (water flows without pumping). Atmospheric Deposition - Contaminants carried by air currents and precipitated into watersheds or directly onto surface waters as rain, snow, or dry partic...

Atmospheric Deposition - Answer-the process, long recognized by scientists, whereby precipitation (rain, snow, fog), particles, aerosols, and gases move from the atmosphere to the earth's surface. Biochemical Oxygen Demand - Answer-amount of dissolved oxygen consumed by aquatic microorganisms. Used as a test for organic waste contamination from sewage, paper pulp, and food waste. Clean Water Act (1972) - Answer-National Pollution Discharge System which requires a permit for any entity dum...

BIO-220 GCU Final

Bio 220 Exam 4 GCU