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The heart consists of four chambers, two atria and two ventricle. The conduction system of the heart mediates synchronised contraction of the chambers to allow the heart to effectively pump blood. The con...

En mis últimas vacaciones, fui a españa con mi familia. Anteayer, volvimos del piso en el que nos alojabamos. Todos los días nos rel...

We will use the FOIL method. Here FOIL stands for: First, Outside, Inside, Last.
This means we start by multiplying the first terms in each bracket together to get y² .
Then we multi...

Step 1 - through previous experience realise this equation can be solved by the substitution methodStep 2 - rearrange for the part you want to sub in, in this case it is done for us as Y is the variable w...

The small intestine is an organ which absorbs the products of digestion (sugars and amino acids etc) into the blood. One of the primary functions of the small intestine is to act as a large surface for ab...