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Explain how vaccination prevents illness in an individual

Vaccination involves the injection of small amounts of a pathogen - a microbe that causes disease - that is either dead or modified to provoke an immune response. Although these pathogens cannot cause diseas...
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Answered by Jack K. • Biology tutor
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Using the source below, explain how Stalin dealt with the Berlin Airlift during the Cold War

In Source A, we are able to depict Stalin as being very angry when facing the Berlin Airlift that took place between June 1948 to May 1949. Stalin himself had created the Berlin Blockade in June 1948, in ord...
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Answered by Charlotte M. • History tutor
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Analyse Indifference Curves and the effect on lower prices. (20)

Explain Utility - satisfaction from consuming good Indifference curve- shows all combination of 2 goods which give consumer equal utilityDraw Indifference curve with examples.- explains why consumers will no...
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Answered by Sulyna A. • Economics tutor
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How does Shakespeare present madness in Macbeth?

We should first consider what 'madness' is, and what different forms of madness there are in the play: there can be madness borne out of terror, anger, love, guilt, ambition and so on. Why is it that Macbeth...
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Answered by Nicole J. • English tutor
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What is the difference between por and para?

This is often challenging for students at the beginning. Both words can be broken down into 4 categories of use, which together can make it a lot simpler to understand when these two different words that hav...
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Answered by Alfred D. • Spanish tutor
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