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This question is taken from Section A of a Spanish HL Paper 2, and roughly translates to: "The mayor of your city has banned fast food chains. You're not sure if such an extreme measure is appropriat...

Deoxygenate blood from the body drains into the right atrium of the heart through the superior and inferior vena cave vessels. When the atria contract, blood is squeezed through the tricuspid valve into t...

use integration by parts

cotidie dominus servos percussit quod crudelis erat. Tandem duo trepidi servi effugerunt.
a. Servos is the masculine accusative plural of servus, whilst servi is the masculine nominative plural. Serv...

Plate tectonics result from the motion of the rigid lithosphere, which rides on top of the more fluid asthenosphere. Given that oceanic crust is thinner and more dense than the thicker, less dense contine...