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differentiating e^x gives e^x (need to know this), differentiating -5x gives -5 (step the power of the x down by 1 and multiply the original power with the coefficient, power of the x ...

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, i...

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 dow...

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...

This is an exapmle of the addition rule as part of the logorithm syllabus. 

The general rule is log_ab + log_ac = log_a(b*c)

When the base of the logarithm is t...