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How is blood glucose concentration regulated, with reference to insulin, glucagon and the liver?

• The alpha and beta cells monitor the concentration of glucose in the blood • The normal blood glucose concentration is 90mg of glucoses in every 100cm³ of blood • If the concentration rises or falls away f...
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Answered by Gabriel A. • Biology tutor
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Muscle contraction is a chemical process involving proteins. Explain how skeletal muscle contracts.

The best way to approach these type of questions (worth 8 marks) is to explain everything step by step. This will make it much easier for you to explain under stressful exam situations as well as for the exa...
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Answered by Hilary L. • Biology tutor
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Explain how a fall in interest rates can affect total spending in the economy.

The manipulation of the level of interest rates is controlled by the government's monetary policy to influence the aggregate demand. A fall in interest rate would reduce the cost of borrowing, thus encourage...
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Answered by Stavria K. • Economics tutor
18729 Views

Discuss genetic factors involved in agressive behaviour.

Genetic factors involved in aggressive behaviour have been shown through a number of various ways. The use of twin studies is useful in researching in to this field as if a greater similarity is shown in mon...
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Answered by Ailish C. • Psychology tutor
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Outline one Psychological explanation of Schizophrenia

The psychodynamic explanations: family systems theory devised by Fromm-Reichmann says that Schizophrenia (Sz)is caused by Schizophrenogenic Mothers. She argued that this type of Mother would send mixed messa...
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Answered by Ailish C. • Psychology tutor
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