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25 Cards in this Set
- Front
- Back
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Biosphere
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The part of the earth the supports life
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Ecology
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The study of interactions between organisms and between organisms and the enviroment
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Abiotic Factors
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Physical, non-living factors that can be affected by living organisms
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Examples of Abiotic Factors
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Water, Soil, Light, Temperature, Air
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Biotic Factors
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Living or once living organisms in their environment
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Population
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All individuals of a species that are in the same area at the same time
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Community
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Population of different species that interact in the same way
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Ecosystem
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Communities and the abiotic factors that affect them.
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Biosphere
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All of the ecosystems.
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Organism
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A single individual in a population.
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What are some characteristics of populations?
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Size, Density, Spacing
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Limiting Factors
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A limiting factor is any biotic or abiotic that restrict the number of individuals in a population.
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What is Caring Capacity?
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The largest number of individuals that an environment can support and maintain over a long period of time.
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Biotic Potential
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The rate of growth of a population if there no limiting factors. Mast populations never reach this.
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What are different Predator/Prey relationships?
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Symbioses, Mutualisms, Commensalism, and Parasitism
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What is Symbiosis?
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When two or more species live close together.
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What is Mutualism?
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Both specials benefit (example, hippos and oxpeckers)
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What is Commensalism?
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Benefits one species and the other species is not harmed.
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What is Parasitism?
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One organism benefits and the other is harmed (e.g., mosquitoes)
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What is a habitat?
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Physical location of where an organism lives
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What is a niche?
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The role of an organism in an ecosystem
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What is the energy flow through an ecosystems?
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Sun, produces (plants), consumers (animals), decomposers (plants/animals)
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What is a food chain?
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Shows the direction that energy flows. Example: Grass -> Mouse -> Owl -> Maggots
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What is a food web?
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A series of overlapping food chains
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What is an ecological pyramid?
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The bottom of the pyramid represents the producers. Each successive layer represents the next organism in the food chain.
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