What is the reason for the lag phase during population growth?
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Card 17
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What does the term 'carrying capacity' mean?
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Card 18
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What is the difference between density-dependent factors and density-independent factors?
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Card 19
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What are three density-dependent factors that could limit the growth of a population?
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Card 20
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If two species of a single-celled organism, Paramecium, P.aurelia and P.caudatum were grown together in a culture, what kind of competition is most likely to have caused the numbers of P.caudatum to decrease?
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Card 21
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What are the properties of an ideal insecticide?
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Card 22
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What are the properties of an organism used for biological control of a pest?
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Card 23
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If a parasitic wasp (Encarsia formosa) is used to control whitefly populations in a glasshouse, what are two reasons as to why it would be inappropriate to use both chemical and biological methods?
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Card 24
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What is an explanation for the rise of carbon dioxide levels in the atmosphere?
