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The artery is composed of elastic fibres which allow the artery walls to stretch following ventricular systole, so that the artery is able to maintain the high pressure.The artery has a smooth endothelial...

Parasitic organisms (or parasites) refer to living things which sustain themselves, obtaining nutrients and other resources, at the expense of another organism that they live on or within, known as the ho...

Prime numbers are those that only have two factors, the number itself and 1. The two factors cannot be the same. E.g. 2 is a prime number but 1 is not.A prime factor is when a prime number is a factor of ...

So here its similar principle to the previous question but the only difference is that there are no singular y's.So essentially the question reads : y^2 + 0y - 64So in the same way we need factors of 64 t...

Factorising Quadratics, double bracketsWe want two numbers that multiply to give 8 and add to give 6. Lets list the factors of 8: 1, 2, 4, 8From the list of of numbers above, which 2 can add to give +6?2 ...