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How can white blood cells defend against pathogens? (Give 3 ways)

White blood cells (WBC) are like our body's guards patrolling our blood to look for any pathogens (bacteria and virus).WBC kills pathogens in the following ways before pathogens make us ill. Eating them : WB...
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Answered by Yvonne L. • Biology tutor
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What are the differences and similarities between animal cells and plant cells in terms of structure and function?

Animal cells and plant cells similarities: Structure Both animal and plant cells contain a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.Both animal and plant cells are eukaryotic (i.e. conta...
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Answered by Mariyum K. • Biology tutor
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Describe and explain the formation of a Corrie (9 marks)

A corrie is a bowl-shaped hollow on a mountain side formed during a period of glacial erosion, an example being Cwm Idwal in Snowdonia, Wales. A corrie begins its formation as an accumulation of snow on the ...
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Answered by Jasmine A. • Geography tutor
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Evaluate the use monetary policy to aid the economy's recovery just after a recession.

Paragraph 1 – define key terms and set the scene! (let the examiner know that you understand the question) Monetary policy is the manipulation of interest rates and money supply to influence levels of AD in ...
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Answered by Saifur R. • Economics tutor
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v = u + at, u = 1 a = -3 t = 1/2, Work out the value of v.

Sub the values you have been given into the formula provided.v = u +atv = 1 + (-3 x 1/2)Solve the equation you have created, be careful to stick to rules of BIDMAS (or BODMAS)and do the calculation in the br...
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Answered by Olivia R. • Maths tutor
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