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20 Cards in this Set
- Front
- Back
Ecology
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Study of interactions that take place between organisms and their environment.
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Biosphere
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Portion of the Earth that supports living things.
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Abiotic factors
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Nonliving oarts of an organism's environment.
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Biotic factors
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Living organisms that inhabit an environment.
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Population
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Group of organisms that interbreed and live in the same area at the same time.
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Biological community
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Interacting populations in a certain area at a certain time.
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Ecosystem
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Population of plants and animals that interact with abiotic factors in the area.
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Habitat
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Place where an organism lives its live
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Niche
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All the strategies and adaptions a species uses in its environment.
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Symbiosis
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Relationship in which animals have permanent associations between different organisms.
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Commensalism
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Symbiotic relationship in which one species benefits and one is neither harmed, nor benefited.
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Mutualism
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Symbiotic relationship in which both species benefit.
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Parasitism
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Symbiotic relationship in which one species benefits, and one species is harmed.
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Autotroph
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Organism that uses light energy, or stored chemical energy to make energy-rich compounds.
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Heterotroph
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Organism that can't make its own food and feeds on other organisms.
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Decomposers
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Organims that breakdown compounds into simpler compounds to be absorbed
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Food chain
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Model scientists use to show how matter and energy move through an ecosystem.
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Trophic level
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Feeding step in a food chain.
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Foobweb
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Model that shows all the possible feeding relationships.
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Biomass
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Total weight of living matter at each trophic level.
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