Term
| What is the definition of biodiversity? |
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Definition
| The total number of genes, species and ecosystems in a given area. |
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Term
| What is species diversity? |
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Definition
| The variety of flora and fauna species in an ecosystem. |
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Term
| Why is a variation in the species of an ecosystem needed? |
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Definition
| So the ecosystem can carry out its functions |
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Term
| What is ecosystem diversity? |
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Definition
| The number of ecosystems in a given area. |
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Term
| What is genetic diversity? |
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Definition
| The different types of genes present in a species, eg breeds of dog. |
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Term
| Why is genetic diversity needed? |
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Definition
| Not everyone will be vulnerable to the same diseases, eg not everyone in Europe died of the black plague because of blood type variations. |
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Term
| What is an advantage of measuring genetic diversity? |
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Definition
| It can determine a species' resistance to pests or diseases. |
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Term
| What is a disadvantage of measuring genetic diversity? |
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Definition
| It is hard and expensive to determine and may require genetic sequencing. |
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Term
| What is an advantage of measuring species diversity? |
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Definition
| Tells you whether or not the ecosystem is functioning and diverse |
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Term
| What is a disadvantage of measuring species diversity? |
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Definition
| Removing a species from the trophic level unbalances the ecosystem |
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Term
| What is an advantage of measuring ecosystem diversity? |
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Definition
| It covers a range of environments |
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Term
| What are the disadvantages of measuring ecosystem diversity? |
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Definition
| There may be overlap between ecosystems so it is unreliable if different people define ecosystem; large scale so some details may be missed. |
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