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Explain how an individual develops immunity following infection by a bacteria

When an individual is exposed to the bacterial pathogen and its antigen, it causes activation of the body's own immune response. When the immune response is initiated, the pathogens are destroyed by T kil...

KM
Answered by Kathryn M. Biology tutor
2532 Views

How does temperature affect enzyme activity?

Enzymes are biological catalysts which speed up the rate of reactions. They are specific to their substrate (seen in the lock and key model) and form enzyme-substrate complexes. At low temperatures the en...

LJ
Answered by Lily J. Biology tutor
18814 Views

Explain the term Economies of Scale. You may use a diagram to help.

Economies of scale is a term used to describe the point at which is a business' operations have grown to a scale that they can operate at a lower unit cost due to reasons such as buying in bulk. This mean...

RL
Answered by Ryan L. Economics tutor
2227 Views

What are effective ways of improving my level of spoken French?

The most effective way of improving your level of spoken French is to practise. Listening to native French speakers in podcasts, films, TV shows and YouTube videos can be extremely beneficial, as you can ...

CE
Answered by Charlotte E. French tutor
1871 Views

How can I effectively conclude a GCSE level essay?

To conclude a GCSE level English Literature essay, you should bring all your points you have made together in order to answer your question. Introduce other ideas if this is helpful, but the main purpose ...

CE
3535 Views

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