B4 - Community Level Systems (Ecosystems) 0.0 / 5 ? BiologyAdaptations of organisms to their environmentGCSEOCR Created by: YiCreated on: 07-12-17 15:00 Intraspecific Competition competition among organisms from the same species 1 of 18 Interspecific Competition competition between two different species of organism 2 of 18 Compost dead and decaying plant material 3 of 18 Decomposer an organism that breaks down carbon in dead animals and plants 4 of 18 Decomposition the process of breaking down material to release nutrients back into the soil. 5 of 18 Natural Ecosystem e.g. oceans, lake, puddles and the rainforest 6 of 18 Artificial Ecosystem man made e.g. planted forests and fish farms 7 of 18 Abiotic Factor physical/non-living conditions that affect the distribution of a population in an ecosystem 8 of 18 Examples of Abiotic Factors light, temperature, soil, pH, wind intensity, moisture levels 9 of 18 Biotic Factors factors caused by living organisms 10 of 18 Examples of Biotic Factors food availability, pathogens, predators, competition between species 11 of 18 Mutualism when 2 organisms live together and they BOTH benefit from the relationship 12 of 18 Parasitism a relationship between two orgainsms where ONE benefits and the other is harmed 13 of 18 Trophic Level feeding positions in a food chain 14 of 18 Producers organisms in a food chain that make food using sunlight 15 of 18 Herbivores eat plants/algae (producers) 16 of 18 Carnivores eat the herbivores, 'meat eaters' 17 of 18 Biomass the dry mass of organisms 18 of 18
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