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This is a common question asked in past paper 1s for both SL and HL Economics. To approach this as a 15 marker, one would first define the key terms in the question such as defining a demerit good and ind...
The three main kinds of valves in the human circulatory system are atrioventricular valves, semi-lunar valves and pocket valves. Atrioventricular...
Thérèse Raquin (1867)Le philosophe allemand Nietzche a déclaré que Dieu était mort. Cette idée a poussé Zola à écrire un roman où les personnages ne son affectés que par leur 'sang' et leur...
Artificial classification is used to divide organisms by their characteristics, which can vary depending on the specific situation which you are considering. Features that are considered are known as anal...
Contain haemoglobin - a molecule that can bind reversibly to oxygen. Biconcave disk shape - increases surface area to allow more diffusion of oxygen. No nucleus - allows more space for haemoglobin. Flexib...
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