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In 1929 the Wall Street crash occurred and depressed America's economy. Germany who was beholden to the USA for loans to cover reparations costs from the First World War was forced to pay back its loans. ...
Answer: 4x3 + 12x2y + 9xy2 - 16x2 - 48xy - 36y2
The heart is a muscular organ composed of 4 chambers; the left atrium and right atrium (pl. atria) and the left ventricle and right...
Artery walls are made up of smooth muscle tissue and a thick elastic layer which allows them to expand and contract easily, coping with the changes in blood volume that occur with each heartbeat. The musc...
Carbon monoxide is a poisonous gas. It binds to haemoglobin in red blood cells irreversibly. This means that less oxygen can be carried by red blood cells. As oxygen delivery decreases to muscles and so l...
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