ECOSYSTEMS covers the following topics; 7.1 ecosystems 7.3 sucession 7.4 nitrogen cycle 4.0 / 5 based on 1 rating ? BiologyEcology, ecosystems and environmental biologyA2/A-levelEdexcel Created by: SarahCreated on: 28-01-15 14:21 Ecosystem all the living and non-living components and how they interact within a habitat 1 of 40 habitat a place where an organism lives 2 of 40 population all the organisms of the SAME species, in the SAME habitat and the SAME time who can INTERBREED 3 of 40 community all the organism of DIFFERENT species, in the SAME habitat which INTERACT with each other 4 of 40 biotic factors factors caused by LIVING components 5 of 40 abiotic factors factors caused by NON-LIVING components 6 of 40 niche the role an organism plays in an ecosystem 7 of 40 what might a niche of an organism entale what they eat / how they feed / how they reproduce 8 of 40 examples of biotic factors predation / food / disease 9 of 40 examples of abiotic factors pH of soil / temperature / soil type 10 of 40 producers convert light energy into chemical energy to supply other organisms 11 of 40 consumers feed on another organism 12 of 40 decomposer feed on waste or dead material 13 of 40 sucession ??? 14 of 40 primary sucession ?? 15 of 40 pioneer comunity ? 16 of 40 climax community ? 17 of 40 secondary sucession 1 18 of 40 saprotrophic nutrition nutrition gained by extracellular digstion - release enzymes and absorb the nutrients 19 of 40 why do we need decomposers nutrients are trapped in waste/dead material - it allows them to be recylced 20 of 40 nitrogen fixation the process by which atmospheric nitrogen is converted into ammonia or nitrate ions 21 of 40 nitrogen fixation by three process... haber process, lightning and nitrogen-fixing bacteria 22 of 40 name of the nitrogen-fixing bacteria Rhizobium 23 of 40 where Rhizobium is found root nodules of leguminous plants 24 of 40 Haber process industrial/artificial conversion of atmospheric nitrogen to ammonia 25 of 40 respiration conditions of Rhizobium and how its maintains anaerobic - maintained by leghaemoglobin 26 of 40 realtionship between rhizobium and legumes multalistic - rhizobium gains energy & legumes gain nitrates 27 of 40 multalistic the way in which two organism benefit each other 28 of 40 ammonifaction breakdown of dead or waste matter by decomposers to produce ammonium 29 of 40 nitrification ammonium --> nitrities --> nitrates 30 of 40 chemoautotrophic bacteria gains energy from oxidising inorganic compounds 31 of 40 chemoautotrophic bacteria is involve in nitrification 32 of 40 chemoautotrophic bacteria works in what type of conditions aerobic 33 of 40 role of nitrosomonas ammonia --> nitrites 34 of 40 role of nitrobacter nitrites --> nitrates 35 of 40 condition for nitrosomonas aerobic 36 of 40 conditions for nitrobacter aerobic 37 of 40 denitrification conversion of nitrates back into nitrogen 38 of 40 conditions for nitrification aerobic 39 of 40 conditions for denitrification anerobic 40 of 40
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