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Explain how an action potential is generated

When a neurone is stimulated an action potential is generated by a change in ion concentrations across the cell membrane. The resting membrane potential (the potential of charge across the membrane when the ...
SJ
Answered by Suraiyya J. • Biology tutor
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Describe how the body maintains its water concentration

Homeostasis- is the principle by which the body maintains a constant internal environment in order to provide optimal conditions for the cells and enzymes to function. Water is taken in via drinking and as a...
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Answered by Rayyan A. • Biology tutor
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To what extent should the transmission of disease be criminalised as an offence against the person?

Since the inclusion of sexually transmitted diseases into the law of England and Wales by Judge LJ in Dica (and in Kelly in Scotland), there has been fervent discussion regarding its appropriateness. Many ha...
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Answered by Liam E. • Law tutor
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Distinguish between anthropocentrism and ecocentrism (15 marks)

Anthropocentrism and ecocentrism are contrasting opinions on how the natural world should be viewed in relation to human beings. Anthropocentrism is a belief that the needs and desires of humans should be at...
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How many quotations do I have to know for the exam and how should I use them?

There's no set number of quotations that you need to know for the exam and, when it comes to learning them, less is definitely more. It's more important to have a small collection of quotations that you can ...
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