Top answers

What is the difference between a variable and an identifier?

A variable is a memory location given a name and a data type. Once a variable has been declared its contents may be modified using its name. An identifier is the name you give a variable. (In the case of Vis...
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Answered by Chris D. • Computing tutor
8969 Views

How should I begin to analyse poetry or prose?

Many students simply get stuck on the starting blocks and after a little guidance can fly with their analysis. I can recommend excellent reading not on the syllabus, titles such as the poetry toolkit or the ...
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Answered by Richard A. • English tutor
3367 Views

How can I include IDAs in my essay questions?

IDAs are issues, debates and approaches in psychology. A good way to include them is to begin a paragraph by discussing the IDA that links appropriately to your question/subject. Then you can bring in a stud...
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Answered by Emily G. • Psychology tutor
5030 Views

How is an action potential fired?

When a neurone is at rest, the outside of the neurone is more positive than the inside. This is due to the sodium-potassium pump which actively pumps 3 Na+ outside the cell, whilst at the same time pumping 2...
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Answered by Eleanor B. • Biology tutor
5012 Views

Describe how a delta forms.

Deltas form where rivers transporting sediment enter a calmer body of water such as a lake or sea and there is a decrease in the energy of the system. The reduction in energy of the flow causes the sediment ...
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Answered by Ben W. • Geology tutor
6888 Views