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1. action potential arrives at post synaptic terminal 2. voltage gated calcium channels open 3. calcium enters presynaptic neuron and move to neurotransmitter vesicles 4. vesicles move to membranes and...

Note that the question is 3 marks. Also note the question uses the word 'contrast' so you must talk about both processes. Cells must communicate with their external environment and vice versa, therefore, ...

Milton makes possible a reading of Eve, his main female character, as a femme fatale. This is a woman who through her power of seduction and female charm gains power over male characters. Milton thus deve...

Moving down a group means that the shielding of the outer electrons is increased due to the greater number of inner electron shells within the atom - these are between the nucleus and the outer electrons....

The extent to which Hippocrates influenced medicine can be debated in many different ways, however, some of the most crucial and innovative movements within medicine throughout history have arguably been ...