Terms : Hide Images
| 4179131231 | ecosystem | consists of all the organisms living in a community as well as the abiotic factors with which they interact | 0 | |
| 4179151806 | primary producers | autotrophs | 1 | |
| 4179151807 | primary consumers | herbivores | 2 | |
| 4179152876 | secondary consumers | carnivores | 3 | |
| 4179154370 | tertiary consumers | carnivores that feed on other carnivores | 4 | |
| 4179154371 | detritivores | are consumers that derive their energy from detritus | 5 | |
| 4179156147 | detritus | nonliving organic matter | 6 | |
| 4179159264 | primary production | is the amount of light energy converted to chemical energy by autotrophs during a given time period | 7 | |
| 4179163236 | gross primary production (GPP) | total primary production, measured as the conversion of chemical energy from photosynthesis per unit time | 8 | |
| 4179166359 | net primary production (NPP) | is GPP minus energy used by primary producers for respiration, the energy available to the consumers | 9 | |
| 4179174150 | net ecosystem production (NEP) | is a measure of the total biomass accumulation during a given period, GPP minus the total respiration of all organisms | 10 | |
| 4179179267 | limiting nutrient | is the element that must be added for production to increase in an area | 11 | |
| 4179180385 | light limitation | depth of light penetration affects primary production in the photic zone of an ocean or lake | 12 | |
| 4179191617 | eutrophication | caused by sewage runoff which leads to the loss of most fish species because there is an increase in phosphorus which limits cyanobacterial growth | 13 | |
| 4179212911 | evapotranspiration | is the water transpired by plants and evaporated from a landscape | 14 | |
| 4179214570 | secondary production | the amount of chemical energy in food converted to new biomass during a given period of time | 15 | |
| 4179217960 | production efficiency | is the fraction of energy stored in food that is not used for respiration; PE = net secondary prod/assimilation of primary production *100 | 16 | |
| 4179227036 | trophic efficiency | the percentage of production transferred from one trophic level to the next; TE is multiplied over length of a food chain | 17 | |
| 4179240463 | turnover time | is the ration of the standing crop biomass to production | 18 | |
| 4179254432 | biogeochemical cycles | nutrient cycles in ecosystems that involve biotic and abiotic components | 19 | |
| 4179259082 | 4 focus factors of biogeochemical cycles | 1. each chemical's biological importance 2. forms in which each chemical is available or used by organisms 3. major reservoirs for each chemical 4. key processes driving movement of each chemical through its cycle | 20 | |
| 4179267588 | water cycle | essential to all organisms; includes evaporation, transpiration, condensation, precipitation, and movement through surface and ground water |  | 21 |
| 4179278733 | carbon cycle | organic molecules made of carbon; cycles in CO2 and organic molecules; includes fossil fuels, soils, sediments, biomass, atmosphere, and sedimentary rocks |  | 22 |
| 4179300005 | phosphorus cycle | major constituent of nucleic acids, phospholipids, and ATP phosphate most important form; binds with soil particles |  | 23 |
| 4179328669 | nitrogen cycle | major constituent of amino acids, proteins, and nucleic acids largest reservoir is in air; |  | 24 |
| 4179336462 | ammonification | organic nitrogen decomposed into NH4+ | 25 | |
| 4179338784 | nitrification | NH4+ is decomposed to NO3- | 26 | |
| 4179338785 | dentrification | converts NO3- back to N2 | 27 | |
| 4179358381 | nitrogen fixation | nitrogen gas is fixed into an organic molecule | 28 | |
| 4179376898 | bioremediation | the use of organisms to detoxify ecosystems | 29 | |
| 4179378351 | biological augmentation | uses organisms to add essential materials to a degraded ecosystem | 30 | |
| 4179421661 | deforestation | causes water loss and soil's inability to hold onto the nutrients which affects fish too | 31 |
