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26 Cards in this Set
- Front
- Back
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Ecology |
The study of the interactions among organisms and their environments |
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Biotic |
The living components of an ecosystem |
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Abiotic |
The nonliving parts of an ecosystem |
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Autotroph |
Organisms that make their own food |
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Heterotroph |
Organisms that obtain stuff from their environment |
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Herbivore |
Animals that feed only on plants |
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Carnivore |
Animals that feed on other animals |
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Predator |
Feed on prey they kill |
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Scavenger |
Feed on dead animals they find (ex. vultures) |
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Omnivore |
Feed on dead animals they find (ex. vultures) |
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Decomposer |
Organisms that feed on dead plants and animals (ex. Fungi, bacteria) |
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Symbiotic relationship |
Certain kinds of interactions between species |
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Mutalism |
Both organisms benefit S: ++ |
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Parasitism |
One benefits while the other is harmed S: +- |
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Commensalism |
One organism benefits while the other is not affected S: +൦ |
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Biosphere |
An ecological system bringing together all living things and their relationships |
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Ecosystem |
A community of organisms and their physical environment. |
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Community |
A space composed of a population of different species in a certain area |
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Population |
A group of organisms of the same species that live in the same place at the same time |
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Niche |
The role a species has in its environment |
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Food Chain |
A series of organisms through which food energy is passed |
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Producer |
An autotophic organism |
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Primary Consumer |
(herbivores or omnivores) |
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Secondary consumer |
(carnivores or omnivores) |
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Food Web |
Interconnected food chains - Different organisms are at different levels and there are many at each level. |
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Biomagnification |
Each higher level of consumers accumulates larger quantities of poisonous substances |
