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Biology Unit 4
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Topic 5: On the wild side
11. Describe how to carry out a study on the ecology
of a habitat to produce valid and reliable data
(including the use of quadrats and transects to assess
abundance and distribution of organisms and the
measurement of abiotic…

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Biology Unit 4
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Organic The dry soil sample can be weighed, burnt in a crucible and reweighed. Any
matter organic matter is burnt off, which accounts for any difference in mass.


Soil Soil texture charts can be used to assess if the soil is mainly clay, silt or…

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