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How should I structure my biology essay?

Mark schemes for biology essays in AQA aren't like the six mark questions at GCSE. You have to cover the subject broadly at first and show that you have an overall understanding of the tpoic in question befo...
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Answered by Samriddhi S. • Biology tutor
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How much should I write about my extracurriculars?

I personally think a personal statement has three core ingredients: academia, supracurriculars and extracurriculars. In a medical school personal statement, there's also a fourth step: reflection. You have t...
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A* grade question: ((2x+3)/(x-4))-((2x-8)/(2x+1))=1 solve for X

Multiply whole equation by x-4 and then 2x+1 (would do this one step at a time but must conserve space here): (2x+3)(2x+1)-(2x-8)(x-4)=(x-4)(2x+1) Expand brackets: (4x^2+8x+3)-(2x^2-16x+32)= 2x^2-7x-4 Do the...
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Answered by Becky L. • Maths tutor
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A plant community on an extinct volcano displays the process of succession. Explain why there would be very few species at the end of the eruptive life cycle of the volcano and why rate of new species introduction would rapidly increase afterwards.

The initial environment would be a harsh/hostile environment which few species would be adapted to. The volcanic rock would have to be broken down to form humus, only a little or none would have been availab...
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Answered by Nehemie M. • Biology tutor
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What is a nerve synapse and how does it work?

What is a nerve synapse? A synapse refers to the junction between two neurons. When an impulse (action potential) reaches the end of a neuron (the pre-synaptic neuron), the synapse allows this signal to be t...
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Answered by Jamie H. • Biology tutor
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