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26 Cards in this Set
- Front
- Back
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Ecology |
The interactions between organisms and between organisms and the environment |
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Biosphere |
That part of the planet containing living organisms |
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Ecosystem |
A group of clearly distinguished organisms that interact with their environment as a unit |
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Habitat |
The place where a plant or animal lives |
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Population |
All the members of the same species living in an area |
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Community |
All the different populations in an area |
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Abiotic factors |
Non-living factors |
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Biotic factors |
Living factors |
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Climatic factors |
Weather over a long period of time |
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Edaphic factors |
Relates to soil |
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Producers |
Organisms that carry out photosynthesis |
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Flora |
The plants in an ecosystem |
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Consumers |
Organisms that take in food form another organism |
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Fauna |
The animals in an ecosystem |
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Decomposers |
Organisms that feed on dead organic matter |
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Detritus feeders |
Organisms that feed on small pieces of dead organic matter |
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Food web |
Two or more interlinking food chains |
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Pyramid of numbers |
Represents the number of organisms at each trophic level in a food chain |
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Ecological niche |
Is the functional role an organism plays in the community |
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Nutrient recycling |
The way in which elements are exchanged between the living and non-living components of an ecosystem |
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Nitrogen fixation |
The conversion of nitrogen gas into ammonia, ammonium or nitrate |
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Nitrification |
The conversion of ammonia and ammonium compounds to nitrite and then to nitrate |
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Denitrification |
The conversion of nitrates to nitrogen gas |
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Pollution |
Any harmful addition to the environment |
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Pollutants |
Harmful additions to the environment |
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Conservation |
The wise management of the existing natural resources in an ecosystem, in order to maintain a wide range of habitats and prevent the death and extinction of organisms |
