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A stationary point is a point on the function where the gradient is zero. The phrase 'stationary point' coming up in a question always indicates that differentiation may be useful to solve it. In this cas...

Carbon dioxide only comprises 0.04 % of the earth’s atmosphere but it is a vital molecule in many processes and effects organisms directly with photosynthesis in plants, body functions causing global warm...

These 3 terms all describe the 3 possible concentrations of a solution in respect to the water potential surrounding a cell.Isotonic solution (Iso=same and tonic=strength...

As there are two unknowns we have to eliminate either the x or the y in order to be able to solve. You can see that in the first equation the x value is a multiple of the x value in the second equation. T...

Picking a college is arguably a very important part of your application to Oxbridge as it is where you will be spending the majority of your time at. My advice would be to first check which colleges offer...