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Explain how changes in prices allocate scarce resources in a market economy [12 marks]

The concept of 'scarce resources' refers to the basic economic theory that the market will consistently have insufficient resources to fulfill all of society's wants and needs. The price of a product in the ...
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Answered by Laura K. • Economics tutor
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What organelles can be found in a plant cell but not an animal cell?

Only plant cells have a cell wall, vacuole, chloroplasts. Both plant and animal cells have a cytoplasm, cell membrane, mitochondria, nucleus, ribosomes and chromosomes.
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Answered by Fae R. • Biology tutor
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Why might ethnic minority migrants concentrate in the inner-city center? [4 marks]

Ethnic minority migrants often concentrate in the city center upon first settling in a new city due to the presence of cheaper housing usually found in these areas; migrants are often found to have relativel...
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Answered by Laura K. • Geography tutor
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Why does ethanoyl chloride have a lower boiling point that pentanoyl chloride?

This question is referring to the size of molecule and its relation to boiling point. The boiling point is higher when the intermolecular interactions are weaker. Intermolecular interactions are weaker in sm...
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Answered by Tom H. • Chemistry tutor
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How do you factorise a quadratic? Something like x^2 + 4x + 3

When factorising a quadratic the idea is to separate it into two brackets, so first, I usually write out the empty brackets like this; (x___)(x___) You then need to think of numbers that you can put in those...
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Answered by Jordan A. • Maths tutor
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