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It is the kidneys job to filter the blood and remove waste products. The kidneys are made of functional units call nephrons of which there around a million per human kidney. In the renal corpuscle filrate co...

First of all before sitting an exam practice not only writing essays, but also writing plans. A good plan should be detailed and you can take 10 minutes at the start of your exam to make a thorough plan so t...

With this question it is important to focus on the human contribution to global warming rather than explaining why global warming is happening. Start your answer by explaining that carbon dioxide and methane...

A freely falling object in air (or any other fluid for that matter) experiences two forces: the gravitational force and the force due to air resistance (or drag force). While the gravitational force depends ...

Phenol (which is a benzene ring with one substituted carbon with a hydroxyl or alcohol group) does not require a halogen carrier to be halogenated whereas benzene itself cannot react with a halogen alone. Wh...