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Explain how gaseous exchange occurs in the lungs

Oxygen enters the nose/mouth along the trachea, bronchi, bronchioles and finally into the alveoli.The exchange of gases occurs between the alveoli and blood in the capillaries that supply the lungs. Capillar...
TD
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Is there a clash of civilisations between Islam and the West? - Discuss

Huntington ultimately ascribes Islam the main source of conflict with the West in his ‘Clash of Civilisations’ movement. In recent years this clash has been witnessed in the rise of political Islam, characte...
LI
Answered by Leena I. • Politics tutor
2864 Views

Discuss the following passage from act 5 scene 1, exploring Shakespeare's use of language and dramatic effect

The first thing to do when approaching an extract question is to ascertain exactly where this scene lies in the overall play. This will give you a fundamental groundwork for understanding the extract general...
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Answered by Amy L. • English tutor
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Has the office of the Prime Minister become 'Presidential'?

There is certainly a case to be made that in recent years, the office of the Prime Minister has become more 'Presidential'. One of the biggest reasons for this is the rise of new media. Due to the ubiquity o...
LD
11854 Views

How do I rewrite 2 cos x + 4 sin x as one sin function?

This question makes use of the sin addition formula. It may be stated as sin (A + B) = sinA cosB + sinB cosA . We want to rewrite 2 cosx + 4 sinx in the form R sin (x + a), so firstly work out what R sin(x +...
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Answered by Sara S. • Maths tutor
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