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What is ATP and what makes it a good source of energy in biological processes?

ATP (Adenosine triphosphate) is a nucleotide derivative which is used to store energy to power most of the reactions in a cell. Reminder: Nucleotides are the five bases which make up DNA and RNA - Adenine, C...
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Answered by Anna W. • Biology tutor
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How is water reabsorption carried out in the kidney?

When water levels are low in the blood, osmoreceptors in the hypothalamus detect this change and trigger the posterior pituitary gland to release a hormone called ADH. ADH binds to receptors on the cell memb...
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Answered by Jenna P. • Biology tutor
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Outline the Logical Problem of Evil and explain why it is a problem for the thiest.

The Logical Problem of Evil alleges that there is a logical inconsistency between the existence of God, as traditionally conceived, and the existence of evil. The formalised version of the argument reads:A. ...
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Answered by Joshua T. • Philosophy tutor
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What is price elastic demand?

The textbook definition of price elastic demand is when % change in quantity demanded (QD) is greater than the % change in price (P). This can be viewed in the formula for price elasticity of demand: %change...
Answered by • Economics tutor
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How would I answer the exam question: Explore Philip Larkin’s portrayal of time in ‘Next Please’ and one other poem. You must discuss relevant contextual factors.

The first thing you need to do is flick to this poem in your anthology to remind you of its content and how the theme – in this case time – is presented. Ask yourself - how is time presented in this poem? Is...
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Answered by Rosalie B. • English tutor
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