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Discuss whether taxing the manufacturers of high-sugar drinks is a justified means of tackling the impact of diabetes and other weight related illnesses

According to the neoclassical Rational Choice Theory, individuals seek to maximise their own utility. The first justification of a tax on sugary drinks is therefore based on the idea that the consumer doe...

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Answered by Alex G. Economics tutor
1732 Views

Express (x+1)/2x + (2x+3)/(x+1) as one term

(x+1)2 + 2x(2x+3) / 2x(x+1)

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Answered by Alex R. Maths tutor
3905 Views

Detail the pathway of oxygenated water in the ventilation of a fish. Name and briefly describe the mechanism by which gaseous exchange takes place.

Oxygen rich water enters the mouthdue to buccal expansion > water is accelerated across the gill filamentsdue to simultaneous contraction of the buccal cavity and expa...

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Answered by Owen F. Biology tutor
2960 Views

Using knowledge of the pathogenicity of HIV, explain why it can't be transmitted through inanimate objects or hand shakes with an infected person.

HIV is a virus and therefore obligately intracelluar, with a very short survival time outside of its host.

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Answered by Owen F. Biology tutor
2465 Views

How can antibody neutralisation of pathogenic antigens help prevent cellular damage? (4 marks)

Prevent:Antigen attachment to cell > cell invasion > pathogen replication > toxin production.

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Answered by Owen F. Biology tutor
2535 Views

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