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Deoxygenated blood enters through the right atrium from vena cava, moves through tricuspid valve into right ventricle. This moves up the pulmonary artery to the lungs and oxygenates.Oxygenated blood enter...

In the poem 'Up-Hill', it is never explicitly mentioned that this "road up-hill" is to Heaven, but the presence of an anonymous voice, answering all of the speaker's questions, certainly has an ...

This is a common question from all French students with no straightforward answer. This question can only fully be answered through experience and memorisation of the French nouns with their gender. Howev...