Abiotic, all the non-living components of an ecosystem; for example, light, temperature, water, Aerobic respiration, Second step in the breakdown of glucose to carbon dioxide and water; occdurs in the mitochondria when oxygen is present and produces 34 ATP molecules, Biological Control, releasing a living organism (a parasite or consumer) into an ecosystem in order to control a population, Biosphere, The intersection between the atmosphere, hydrosphere and lithosphere., Biotic, All the living organisms in an ecosystem., Capture-recapture, A method of esptimating the number of organisms in an ecosystem by capturing, marking and releasing organisms., Carrying capacity, The maximum number of organisms in a population that can be sustained by an ecosystem., Commensalism, A relationship between two organisms from different species; one organism benefits; the other organism is not affected., Community, Different populations living in the same place at the same time., Competition, A relationship between organisms using the same limited resources in an ecosystem., Decomposer, An organism that gains nutrients by breaking down dead organisms into simpler nutrients., Disease, A disorder or condition that interrupts normal functioning of an organism., Ecosystem, A community of living organisms (biotic) together with their non-living (abiotic) factors., Emigration, When an organism leaves an ecosystem., Enhanced Greenhouse Effect, An increase in carbon dioxide and other heat-capturing gases in the atmosphere, which results in increased warming of the Earth., Epicormic bud, A small growth beneath the bark of a plant that allows regeneration after a fire., Evaporation, The process of liquid water gaining thermal energy and changing into gas., Habitat, The place where a population of organisms live., Hibernation, When an organism becomes inactive, usually as a result of low temperatures., Immune, Able to fight an infection as a result of prior exposure., Lignotuber, A small growth in the root of a plant that allows regeneration after a fire., Matter, Anything that has space and volume; is made of atoms., Migration, The movement of a single organism or population from one ecosystem to another., Mutualism, A relationship between two organisms of different species in which both organisms benefit., Parasitism, A relationship in which one organism (parasite) benefits and the other organism (host) is harmed., Photosynthesis, The process in plants in which glucose is produced from water and carbon dioxide., Population, A group of the same species living in the same place at the same time., Precipitation, The process in which water vapour in the upper atmosphere becomes liquid water in the form of rain, snow or sleet and falls to the ground., Symbiosis, A close physical relationships between two members of different species, Transpiration, The process of water evaporating from plants

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