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18 Cards in this Set
- Front
- Back
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Autotroph |
Organisms that make their own food from simple organic molecules such as CO2 and water and energy |
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Photoautotrophs |
Makes it's own food using simple organic molecules and light energy. Examples are some protoctists and some bacteria |
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Chemoautotroph |
Makes it's own food using simple organic molecules and chemical energy |
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Community |
All the populations of different species that live in the same place at the same time and who can interact with each other |
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Conservation |
Maintenance of biodiversity, including diversity between species, genetic diversity within species and maintenance of a variety of of habitats and ecosystems |
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Intraspecific competition |
Competition between individuals of the same species. Caused by lack of food or space, leads to drop in population |
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Interspecific competition |
Competition between species. Can affect both population size and distribution of a species |
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Abiotic factors |
Non living components that effect the lives of organisms such as sunlight and CO2 concentration |
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Interspecific competition |
Competition between species. Can affect both population size and distribution of a species |
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Abiotic factors |
Non living components that effect the lives of organisms such as sunlight and CO2 concentration |
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Biotic factors |
Living organisms that affect the lives other organisms in a habitat such as predators |
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Succession |
A directional change in a community if organisms over time |
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Niche |
The role an organism plays in an ecosystem |
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Tropic level |
The level at which an organism feeds in a food chain |
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Tropic level |
The level at which an organism feeds in a food chain |
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Gross primary productivity |
The rate at which a plant converts light energy into chemical energy. The total amount of energy fixed by photosynthesis (MJ per metre squared per year) |
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Net primary productivity |
The remaining energy after after a plant respires left to the primary consumer |
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Carrying capacity |
The maximum population size that can be maintained over a period of time in a particular habitat |
