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A patient is infected by a pathogen. Explain the process of the imitation of the immune response (5 marks) The paitent was prescribed antibiotics yet their symptoms did not improve. What can you infer from this? (1 mark)?

5 of the following... Pathogen has antigens on its surface that are recognised as foreign by the immune system T helper cells stimulate cytotoxic T cells, B cells and phagocytes (or lysosomes) B cells produc...
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Answered by Harriett F. • Biology tutor
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Explain the events which caused the outbreak of the First World War.

World War I was caused by both long and short term factors, primarily the assassination of Archduke Franz Ferdinand at the height of Austria-Hungarian and Serbian friction, which acted as a trigger for the d...
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Answered by Vicki P. • History tutor
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how do I write a good personal statement?

Hi,Your personal statement needs to tell the reader exactly why you are studying the subject you are applying for and your passion for it.It needs to remain very concise and to the point.You need to include ...
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Solve the simultaneous equations: y+4x+1=0 and y^2+5x^2+2x=0

y= -4x-1y 2 = (-4x-1) 2 = 16x 2 +8x +1y 2 +5x 2 +2x = 0lets substitute what we found y 2 equal to earlier, which gives us(16x 2 +8x +1) + 5x 2 +2x = 021x 2 + 10x +1 = 0after factorising this we get(7x+1)(3x+...
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Answered by Oleksandr U. • Maths tutor
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What are Isotopes?

Atoms and elements are made of protons, neutrons and electrons. The nucleus is made of protons and neutrons, and the electrons surround the nucleus, as shown in the illustration below. The sum of the number ...
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