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16 Cards in this Set
- Front
- Back
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What is distinguished by its flora, fauna and climate? |
Biomes |
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How are biomes distribution influenced? |
By temperature and rainfall |
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The variety of living things is known as what? |
Biodiversity |
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The term used to describe where an organism lives. |
Habitat |
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It is made up of the community and habitat. (The living and non-living parts) |
Ecosystem |
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Define a population |
Group of one species within a given area. |
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What term is given to many populations in a given area? |
A community. |
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Define a niche |
The role an organism plays in the community. |
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List 3 interactions within a niche |
Competition, Predation and parasitism |
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Competition for food, space, light, predation and diseases are examples of which factor? |
Biotic factors |
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Light intensity, pH, oxygen concentration, water current are examples of which factor? |
Abiotic factors |
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List 3 examples of the impact of human influences on biodiversity. |
Over-exploitation, intensive farming, habitat destruction, genetic pollution, pollution, Climate change. |
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Explain how predation can affect biodiversity. |
They keep the number of prey down to ensure enough resources for all organisms. |
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Explain how grazing can affect biodiversity. |
If there is no grazing the dominant species will overtake and reduce the biodiversity. If there is a high level of grazing then it keeps the dominant species down allowing for less dominant species to grow and thrive. |
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What is interspecific competition? |
Competition between different species. |
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What is intraspecific competition? |
Competition between the same species. |
