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20 Cards in this Set
- Front
- Back
population
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a particular section, group, or type of people or animals living in an area or country |
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species
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a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding |
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food web
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a system of interlocking and interdependent food chains. |
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biodiversity
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symbiosis |
interaction between two different organisms living in close physical association, typically to the advantage of both. |
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parasitism
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a non-mutual symbiotic relationship between species, where one species, the parasite, benefits at the expense of the other |
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competition
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interaction between organisms, populations, or species, in which birth, growth and death depend on gaining a share of a limited environmental resource |
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mutualism
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symbiosis that is beneficial to both organisms involved |
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commensalism
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a class of relationships between two organisms where one organism benefits from the other without affecting it. |
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predation
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biological interaction where a predator (an organism that is hunting) feeds on its prey |
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transfer of matter
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The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem |
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photosynthesis
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the process by which plants, some bacteria, and some protozoans use the energy from sunlight to produce sugar |
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heterotroph
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An organism that cannot manufacture its own food and instead obtains its food and energy by taking in organic substances, usually plant or animal matter |
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autotroph
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An organism capable of synthesizing its own food from inorganic substances using light or chemical energy |
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abiotic
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non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. |
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biotic
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the living components of an ecosystem
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habitat
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the natural home or environment of an animal, plant, or other organism |
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niche
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a position or role taken by a kind of organism within its community |
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trophic level
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each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy |
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detritivores (decomposers)
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an organism (as an earthworm, maggot, or a fungus) that feeds on dead and decomposing organic matter.
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