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Two straight lines can intersect at only one point. To identify the point at which the lines cross, we make a simultaneous equation, and solve x and y from here, by firstly writing one equation on top of ...

1. The heart is myogenic which means it generates its own electrical impulse - this originates from the sinoatrial node in the right atrium. 2. The impulse from the SA node passes through the right and...

Mix the reagents and record the time taken for a specific observation, e.g. disappearance of colour which is characteristic for this chemical reaction. We repeat this step and add more manganese(II) ions;...

Motor neurones have a myelin sheath made of Shwann cells. It's an electrical insulator meaning action potentials cannot pass through them. Along the axon there are gaps where there's no myelin sheath, cal...

In Regeneration, Pat Barker explores the horrific consequences of war upon the human psyche. This is primarily demonstrated in the character of Burns, a man unable even to eat due to his damaging ...