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Active transport is a process where particles move from an area of low concentration to an area of high concentration against a concentration gradient. In order for particles to move against a concentrati...
The subjunctive is used in Spanish to present possibility - something that isn't certain. For example, if I'm not sure if it will rain or not, I would say 'Es posible que lluvie' (It is possible that it w...
At the centre of the atom, is the nucleus. This is made up of protons and neutrons. Protons are positively charged, with a relative charge of +1. Whilst neutrons are neutral (relative charge = 0).Surround...
This exercise is testing the difference between the relative pronouns qui and que. Qui is used on the subject of a sentence: that is, the thing or person doing the action. Who stole the ...
Firstly - take a deep breath. This is an opportunity for you to pool all of your knowledge together and show off.Secondly - consider the wording of the question. The wording of the question will determine...
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