SLS Bio11 Ecology MW
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| carrying capacity | the number of living organisms that a region can support without environmental degradation
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| cellular respiration | what cells do to break up sugars into a form that the cell can use as energy
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| chemical equation | a balanced chemical equation shows how many of what molecules react, how many of what molecules result
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| climax community | ecological community that has reached the final stage of ecological succession
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| commensalism | relationship between two organisms in where one benefits and the other is neither benefited nor harmed
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| consumer | an organism that generally obtains food by feeding on other organisms or organic matter
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| cyclic population growth | occurs when there is a low amount of population, food is very high, & the population explodes
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| decomposer | an organism, especially a soil bacterium, fungus, or invertebrate, that breaks down organic material
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| density-dependent factors | where effects on size and growth of population vary with the population density
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| density-independent factors | where effects on size and growth of population are not influenced by population density
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| ecological succession | gradual process where ecosystems change and develop over time; nothing remains the same and habitats are constantly changing
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| energy flow | movement of energy around an ecosystem by biotic & abiotic means
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| exponential growth | where the population keeps growing and growing (no limiting factors)
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| logistic growth | where the population is limited by limiting factors such as food shortage and shortage of shelter and space
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| mutualism | symbiotic relationship that is beneficial to both organisms involved
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| parasitism | non-mutual symbiotic relationship between species, where one species, the parasite, benefits at the expense of the other, the host
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| photosynthesis | process where green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
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| pioneer species | durable species who are the first to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession
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| population | all the organisms of the same group or species, which live in the same geographical area (ability to interbreed)
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| producer | organisms that make their own energy through biochemical processes
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| products | something manufactured by an organelle
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| pyramid of energy | graphical model of energy flow in a community
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| reactants | substance taking part in a chemical reaction
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| steady state | state where matter is flowing and all components remain at a constant concentration
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| symbiosis | relationship between two different species of organisms that are interdependent; each benefits from the other
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