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The first thing to do when planning an essay is to identify the most important words in the question, and consider what they mean. This will ensure that you are really answering the question directly rath...

Cardiac muscle is myogenic. This means signals for contraction and relaxation originate from the heart itself. The process is initiated in the sinoatrial node (SAN), located in the right atrium. The SAN i...

When an action potential reaches the terminal of a pre-synaptic cleft, voltage-gated calcium channels are stimulated to open, causing an influx of Ca+ ions in the pre-synaptic neuron. This infux of Ca+ io...

Price elasticity of demand = % change in quantity demanded / % change in price
PED = ((2m - 1m)/1m x100) / ((1.35-1.5)/1.5 x100)
PED = 100/-10PED= -10
it is price elastic since PED < -...

Introduction - Establish an opinion on the quotes/ Establish the two key sides of the argument. In this case the presentation of Othello as a figure who conforms to the classical Aristotle form of tragedy...