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ADH, short for antiduretic hormone, is produced when the concentration of solutes in blood plasma increases - this is detected by receptors in the brain. ADH is then released into the bloodstream, where i...

During inspiration the diaphragm contracts flattening, and the external intercostal muscles contract pushing out the ribs and sternum. This increases the volume and decreases the pressure within the thora...

The iris controls the diameter of the pupil to accommodate for the level of light that needs to enter the eye. When an individual moves into a dark room, the pupil must dilate to allow more light to enter...

The most important thing for scoring highly in and English Lit essay is to constantly be contrasting and comparing your observations to other texts. This shows the examiner that not only do you know the c...

Price Elasticity of demand relates to how responsive consumers are in response to a change in the price of any given good or service. You can calculate price elasticity through the formula: Price elastici...