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Auxins are degraded within the tips of the shoots of the plant exposed to sunlight, and gather on the shaded side of the shoots. Gathered auxins enourage cell elongation, and the shoot to grow upwards, to...

Similes and metaphors are used by writers to describe and they compare how one thing is similar to another. For example, instead of saying ‘the boy had blue eyes’ a writer might compare the colou...

An Open System is one in which one or more of the reactants or products are able to escape from the container. A Closed  System is one in which neither the reactants or the products can escape from the co...

Wagner’s Tristan und Isolde is one of the most significant works of the 19th century. It is particularly notable for a radical approach to melody and harmony. The appropriately named ‘prelude’, not ‘overt...

Bivalves - Firstly they have two identical valves make up the main shell. They also grow from a few mm to 1m in size such as the giant clam. In order to close the valves, a pair of adductor muscles contra...