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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 ...
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 carbo...
A mutation is a change in the genetic composition of the DNA. It is often caused by an accidental insertion, deletion or swapping of a single base however whole genes can also move.
SNPs,...
Intercostal muscles and the diapragm contract, which causes the ribs to move upwards and outwards. This increases the volume of the thorax, therefore lowering the pressure within the lungs. The pressur...
The myelin sheath is a layer of insulating, fatty material that encases some neurones. The sheath is composed of Schwann cells that have gaps called nodes of Ranvier between them. Potassium and sodium ...
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