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Groups and periods are just ways to divide and categorise elements in the periodic table according to their properties- be it physical or chemical. A period is the horizontal line and all the elements in ...

Answer: Eu iria à praia se estivesse bom tempo.

Why? You are asked to use the 'condicional', which is, with a few exceptions, combined with the 'conjuntivo'. Whils...

Bile is alkaline, so it neutralises the hydrochloric acid from the stomach. This creates the right pH for the enzymes working in the intestine. As well as this, bile is an emulsifier. It breaks up big dro...

The coronary arteries supply the blood to the tissues of the heart, which is made up of cells called myocytes. In the body, the heart acts like a pump and contracts in order to force blood out into the re...

It’s not so much about knowing a lot about medicine, it’s more about coming across as a friendly, interesting person who is easy to talk to. Don’t worry about having an instant reply, they understand if y...