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Haemophilia is a sex-linked genetic recessive disease, meaning it is associated with a gene located on the X chromosome. As males have only one X chromosome, inheriting that chromosome will mean that they...

Our heart can be divided into a left and right side, each containing two chambers: an atrium and a ventricle. Low pressure blood flows into the atria and is pumped out of the ventricles (high pressure); t...

gradient =7 y intercept = 7

A waterfall is an erosional landform, which occurs where there is a layer of hard rock on top of a layer of softer rock. Erosional processes such as hydraulic action and abrasion occur as the river flows ...

The root of an equation is a point where, when the equation is plotted on a graph, it crosses the x axis. The x axis is the line y = 0, so the roots can be found by setting 0 = ax² + bx + c whe...