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Cancer is caused by the uncontrolled division of cells. If a cancer is benign, it will be a certain size and stay that size. However if it is malignant, then it will grow and get bigger in size. Eventuall...

DNA and RNA have many similarities. They are both formed of a backbone made from sugar and phosphate groups, however DNA is formed of the sugar deoxyribose, and RNA is formed of ribose sugars. Attached to...

The neuromuscular junction is the meeting point between a nerve and a muscle, specifically a motor neurone and a muscle fibre. It is the way in which the brain communicates with the muscles of the body to...

A vaccine is a weakened form of the disease causing bacteria injected in to the patient. The person then develops immunity to that bacteria and so when they are infected with the bacteria, they are able t...

Concentration of urine is controlled by the hormone ADH (anti-diuretic hormone)This hormone is released into the bloodstream; by the posterior pituitary glandIf the water concentration in the blood is too...