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By the year 1589, Elizabeth was old and increasingly decrepid. She was disillusioned wth those around her and the death of many of her great councillors limited her ability to rule successfully. Furthermo...

Depolarisation of the membrane in a myelinated neurone occurs in gaps between the schwann cells of the myelin sheath known as nodes of Ranvier. During depolarisation of the membrane at a node there is an ...

The pancreas is located in the central abdomen and is responsible for a variety of endocrine and exocrine functions. 

Its endocrine (into blood) functions include the release of insulin (to control...

The high concentration of glucose in the blood is detected by the pancreas. Beta cells in the pancreas secrete insulin and the alpha cells cease production of glucagon. The insulin binds to specific recep...

Firstly, I would look at the exam board the student is using. For GCSE and A Level, marking criteria are usually a great starting point. However, for students they can often be too wordy and complex. Bein...