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It is often said of the two party system of government in the USA that the party divisions are becoming increasingly polarised. However, division is seen not only between the two parties but within them w...

Since we differentiate a function to find the gradient of a curve at any point, we need to reverse that to find the equation of the curve. We do this by integrating with respect to x:If you have a constan...

I'd recommend setting aside a free period a week to think about medical issues. This could look like reading a book about a medical issue or reading through the Health section on the BBC. As you read the ...

Molecular shape is based on VSEPR Theory which states that electrons in lone pairs repel other electrons in lone pairs the most. Electrons in lone pairs repel electrons in bonding pairs less and electrons...

Xylem passively and unidirectionally transports water (by osmosis) from the roots to the leaves of a plant, whereas phloem uses active transport to bidirectionally transport food from the leaves to growin...