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What gives rise to antibiotic resistance?

Key points VARIATION: A population of bacteria aren't all identical, even having all derived from a single bacterium. Rapid genetic exchange gives rise to mutations. SELECTION PRESSURE: By adding the selecti...
AS
Answered by Aman S. • Biology tutor
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What are the methods of calculating depreciation?

There are 2 ways in calculating depreciation: Straight Line method and Reducing Balance method. Straight Line method is simple to calculate ( (cost of the asset - Residual value) / Useful life ). When calcul...
FA
Answered by Faizan A. • Accounting tutor
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Discuss different forms of coastal management

The UK uses sediment cells to manage its coastal areas. Different management plans are allocated to different areas often based on a cost benefit analysis. The plan implemented is often decided on the basis ...
ML
Answered by Maya L. • Geography tutor
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Expand and simplify (x − 4)(2x + 3y)^2

Expand the (2x + 3y)^2 term to give 4x 2 + 9y 2 +12xy Expand (x - 4)(4x 2 + 9y 2 +12xy) to give (4x 3 +9xy 2 + 12x 2 y - 16x 2 -36y 2 - 48xy)
MR
Answered by Mohammed R. • Maths tutor
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How does Orwell use juxtaposition throughout 1984, and what effect does this have on the reader?

The primary use of juxtaposition in 1984 is the near-constant juxtaposition of truth and reality, versus deception and lies, especially through wordplay and appearances. The Ministry of Love's violent tortur...
SR
Answered by Sian R. • English tutor
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