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Most cases of scarlet fever occur in children. Adults have usually developed immunity to a toxin that the Streptococcus bacteria produce during infection. Explain how an adult develops immunity to the toxin.

Previous exposure to the toxin confers immunity by eliciting an immune response whereby b-cells differentiate into plasma cells allowing the production of antibodies. These will in turn stimulate producti...

GS
Answered by Georgia S. Biology tutor
8316 Views

What is the best way to approach interview stations at Multiple Mini Interviews?

Multiple mini interviews are largely a way for the interviewer to assess the students personability and empathy. Most of the questions, if not all of the questions, require no knowledge - medicinal or oth...

CS
1261 Views

Use the substitution u=1+e^x to find the Integral of e^(3x) / (1 + e^x)

ex=u-1 so e3x=(u-1)3 and du/dx = ex so rearranging gives dx=e-x du Substituting all that information in the integral we get Integral ( (u-1)...

IP
Answered by Ismet P. Maths tutor
10586 Views

Explain price elasticity of demand and how firms can exploit this.

Price elasticity of demand (PED) is defined as % change in quantity demanded / % change in price. This is also the slope of the demand curve. If PED is less than 1, we say that the demand for the good is ...

TD
2616 Views

How do I write a strong introduction?

The introduction is often seen as an annoying hurdle, but it is crucial in giving the marker a strong first impression. Writing an unclear intro that considers a few possible arguments or approaches but d...

JG
3148 Views

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