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It can be hard for native English speakers to fully grasp the subjunctive mood, because it’s so archaic in English. Firstly, it’s a mood and not a tense. It emphasises that somewhere in your sentence ther...

Give three possible explanations always including the one in the question e.g. power of the state; social and economic divisions; and problems with Chartism itself.Introduce all three factors and your arg...

Binding the first oxygen molecule leads to a change in the tertiary structure of haemoglobinThis uncovers the second haem binding site for another oxygen molecule to atta...

As you go along a period, there is an increasing number of protons in the nucleus of each atom meaning that the nucleus has an increasing positive charge.This means that the electrons are puller closer to...

When the action potential reaches the presynaptic knob, it causes calcium ion protein channels to open and calcium ions enter the presynaptic knob by facilitated ...