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Describe the development and propagation of an action potential in response to a stimulus (6 marks)

1. stimulus excites membrane so Na + channels open, membrane becomes more permeable to Na + so Na + diffuse into neurone down electrochemical gradient. Inside of neuron becomes less -ve 2. Depolarisation : i...
SW
Answered by Simmy W. • Biology tutor
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Examine why there are different Christian views about the place of women in Christianity (AQA, June 2018)

Dissenting Christian views on the place of women in Christianity refer usually to differing views of the role of women in the Church. The Catholic and Orthodox churches affirm the equality of women in the ch...
CR
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Explore how Shakespeare presents the character of Lady Macbeth in this extract. Refer closely to the extract in your answer.

In Act 5 Scene 1, Shakespeare presents Lady Macbeth sleep walking and talking aloud about the murder of Duncan. Her speech is often fragmented, incoherent and puzzling to the audience, and the Doctor and gen...
JB
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I am applying to Oxbridge- what should I include in my personal statement?

Before planning your personal statement, you should have a clear idea of what subject you are applying for. The purpose of your personal statement is to demonstrate your interest in this subject and to convi...
RM
3040 Views

If a 5 metre ladder is resting against a wall and the bottom of the ladder is 3 metres away from the wall, and someone pulls the bottom of the ladder away at a speed of 1 metre per second, calculate the speed of the top of the ladder after t seconds

After t seconds the distance between the bottom of the ladder and the wall is t metres. Let x denote the distance that the top of the ladder has moved after t seconds. Now use the theorem of Pythagoras to ob...
OB
Answered by Oliver B. • Maths tutor
3504 Views