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35 Cards in this Set
- Front
- Back
Organism
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A single living thing
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Population
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The number of organisms of the same species. "What is the population of penguins in the zoo?"
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Community
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All the organisms in an ecosystem. Such as "What are all of the living things in the marsh?" or all the living things in the habitat, the living part of an ecosystem
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Habitat
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place where organism lives
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Biome
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A collection of ecosystems that are similar or related in the dominant for of plant life. A large area with a characteristic climate.
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Biosphere
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All the biomes and all the ecosystems on Earth. Region on earth in which life exists.
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Consumer
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An organism that cannot make its own food and has to eat other organisms which is producers
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Producer
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An organism that can make its own food
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Abiotic
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Non-living factors in the environment such as wind, temperature
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Biotic
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Factors caused by living things such as bacteria or biological factors
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Food chain
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organisms linked together by their feeding relationships.
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Food web
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Many food chains that inter-connected to each other
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Ecology
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The study of the interaction of living things with each other and with abiotic factors of the environment.
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Abiotic
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Factors in an ecosystem by non-living agents.
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Biotic
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A factor in an ecosystem created by the presence and rolls of other living things.
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Ecosystem
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In an area defined by ecologists the set of relationships between populations of species and between population of abiotic factors.
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Ecotones
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A transition area between two ecosystems that includes members of the community of both ecosystems
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Community
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A collection of all populations of all species in an ecozone. All organisms in an ecosystem.
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Niche
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Al ways in which an organism interacts with its biotic and abiotic environment
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Trophic level
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The way of categorizing living things according to how they gain energy First trophic level is autotrophs.
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Autrotroph
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an organism that uses energy and raw materials to make its own food, whether from photosynthesis or some other form of chemical synthesis a, a producer
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Hetrotroph
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An organism that is incapable of making its own food, and so must feed on another organisms to gain energy.
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Omnivore
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an animal that eats both plants and meat
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Predator
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an organism that attacks another organism for food
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Prey
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an organism that is the victim of another animal
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Decomposer
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An organism that feeds on detritus in the process releasing nutrients to soil and water where it can be used by other organisms
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Extinct
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A species that no longer exists
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Endangered
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is a species with a decreasing
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Extirpated
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One species that no longer exits in one part of a region but found in other regions.
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Threatened
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A species that is likely to become endangered if factors that make it vulnerable are not reversed
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Vulnerrable
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Any species that is at risk because of low or declining population at the fringe of its range
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Mutulism
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a relationship between two species of organisms in which both benefit from the association.
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Commensalism
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relationship between two organisms of different species in which one derives some benefit while the other is unaffected.
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Parasitism
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Relationship between two organisms where one benifits and another is killed
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Symbosis
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the living together of two dissimilar organisms, as in mutualism, commensalism, amensalism, or parasitism
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