Ecosystems and Sustainability 0.0 / 5 ? BiologyEcology, ecosystems and environmental biologyA2/A-levelOCR Created by: Mei CarrickCreated on: 19-05-14 16:48 Define ecosystem All the living organisms and all the non-living components of a habitat interacting with their environment. 1 of 9 State that ecosystems are_________? Dynamic 2 of 9 Define biotic factor All the biological components of an ecosystem (inter/intraspecific competition, predation, disease, food supply). 3 of 9 Define abiotic factor All the non-biological compenents of an ecosystem (pH, soil type, CO2/O2/N2/H2O concentration/availibility). 4 of 9 Define producer Autotrophic organisms that convert light energy into chemical energy, that can then be availible to consumers. 5 of 9 Define consumer Organism that eats other living organisms. 6 of 9 Define decomposer Organisms that feed on waste material and dead organisms, converting it to molecules, minerals and energy that is then availible to other organisms. 7 of 9 Define trophic level The level at which an organism feeds at. 8 of 9 Describe how energy is transferred through ecosystems Energy is transferred by organisms consuming each other. This is shown in a food web, with the arrows representing 9 of 9
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