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How should one structure a typical A level essay exam answer?

The most importance driving factor in your answer should be your argument, At the beginning of the essay, make it clear to the marker exactly what you think about the issue in the question. For example, if t...
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Answered by Henry G. • History tutor
3155 Views

How are action potentials generated in a neuron?

A stimulus at the receptor end of the neuron causes the membrane to become more permeable to Na+ ions. Because there is a higher concentration of Na+ on the outside of the cell the flood into the cell down t...
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Answered by Alexander N. • Biology tutor
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Suggest how the two sub-species have developed from a single ancestral population.

Two populations become separated by a barrier such as sea (geographical separation). As a result populations cannot interbreed, hence gene flow between two populations is prevented. As a consequence, only a ...
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Answered by Maja S. • Biology tutor
3445 Views

write log2(5) +log2​​​​​​​(3) in its simplest form

This is an exapmle of the addition rule as part of the logorithm syllabus. The general rule is log a b + log a c = log a (b*c) When the base of the logarithm is the same and they are added the to numbers of ...
NP
Answered by Nicole P. • Maths tutor
12615 Views

Simplify 3(x-5)/x^2-3x-10

The question is asking us to simplify; in particular, we have to simplify a fraction. We simplify a fraction by cancelling a factor from both the numerator and the denominator. We can apply this algebraicall...
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Answered by Nathan B. • Maths tutor
5653 Views