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How does eutrophication work?

Fertilisers containing nitrogen are washed from fields to rivers and ponds. 2. This effectively fertilises the algae in the pond causing an 'algal bloom'. 3. The layer of algae on the surface stops sunlight ...
IH
Answered by Iona H. • Biology tutor
4742 Views

What are the benefits of innovation within a business?

Definition Innovation is the successful exploitation of new ideas. This is predominantly achieved through research and development (R&D). R&D is the necessary investigations in order to discover new ...
JH
43966 Views

How do you integrate the function cos^2(x)

At first, you might think that it is possible to perform this integral simply by inspection, using the 'backwards chain rule'. This method would consist of adding one to the power, to get cos 3 (x), then div...
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Answered by Edward R. • Maths tutor
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How are blood glucose levels controlled in the body?

When there is an excess of glucose in the blood (as there would be after eating a meal), the increase in blood glucose concentration is detected by the beta cells of the islets of Langerhans in the pancreas ...
ET
Answered by Elizabeth T. • Biology tutor
15929 Views

How do I approach comparing unseen text during an exam?

It can be daunting having no prior knowledge of the extracts you are about to compare but here are some simple tips as so how to approach this stressful situation during your exam: 1 – Read through each extr...
TG
20892 Views