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Women are portrayed as follows:Elizabeth Bennett is unique in her wilful nature and dominance, which acts surprisingly as an attraction to men who propose (e.g. Fitzwilliam and Darcy) yet is a terror to h...

If osmosis is the movement of water across a partially permeable membrane, then chemiosmosis is the same, but for chemicals. Let's consider the mitochondria, which has a double membrane envelope, and let'...

This I'd set as a higher tier GCSE problem.To begin with I'd draw the shapes so that it's clear what we're working with. Then I'd ask my tutee to work out the areas of the individual shapes--these will be...

The tax increases costs of production, moving the supply curve to the left by the amount of tax. There has been a fall in the equilibrium quantity and a higher price paid by consumers. The burden of tax o...

p=3a+5/4-a. 1.Times both side by (4-a) in order to remove the denominator. p(4-a)=3a+5. 2. Expand the brackets. 4p-ap=3a+5 3.Now you need to get the two a's on the same side. doesn't matter ...