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Blood is carried from the body to the heart via the Super Vena cavaIt enters the heart first into the right atrium before going through the right atrioventricular (tricuspid) valve into the right ventricl...

The movement of water molecules from an area of high water concentration to an area of low water concentration.

Use the mark schemeIt is important to really understand the mark scheme for your particular exam board and qualification to see exactly what they are looking for. Often the mark scheme will include...

It has a bi-concave shape which means that it has a larger surface area, so that more Oxygen and Carbon Dioxide can move in and out.It has no nucleus to allow maximum amounts of haemoglobin (a protein tha...

For most Quadrátics in the form of ax^2+bx+c=0there is atleast 2 solutions in most cases as the graph of the quadratic passes the x axis on most cases. But In some cases the quadratic graph doesn’t Cross ...