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Deoxygenated blood flows from the right ventricle to the lungs via the pulmonary artery. The contraction of the right ventricle increases the pressure within it so that it is greater than in the pulmonary...

The perfect tense is used to talk about something that has happened in the past, usually an action that has completely finished (unlike the imperfect tense which often describes an action which is ongoing...

First, read the question fully and underline any key words or phrases that might tell you what the examiner is looking for. Then, create a short plan by brainstorming a few key points that you want to mak...

I think it's important to be ready for this question but to ensure it's not a generic scripted answer. Even if this question is not directly asked other questions will definitely allude to it and the key ...

Similarities:Both have a quaternary structure (consisting of more than one polypeptide).Both are found in animals (haemoglobin is found in blood and collagen is found in the muscles, skin, bones and tend...