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The cell membrane is comprised of molecules with a phosphate head and hydrocarbon tail. The phosphate heads are polar, therfore they are hydrophilic and form favourable interactions with water, so line the o...

Differentiation is a relatively easy process once you learn the basic method. The basic rule is, you multiply the coefficient of x by the exponent, which becomes the new coefficient, and then reduce the expo...

Lots and lots of past paper questions! Any other questions as well really. When it comes to maths, practice makes perfect. Every time that you answer questions from a specific topic, you develop an extra bit...

This is the market structure that is more commonly found in the real world. It borrows its characteristics heavily from both perfectly competitive markets and monopolies. It's characteristics are as follows:...

Many teachers will tell their students that there is no such thing as a ‘wrong’ answer in English Literature. This is true, on one level, but can be quite misleading. For the sake of simplicity, this stateme...