Top answers


How does the body fight off an infection? Like when someone catches a cold.

The body has many ways in which it deals with 'foreign invaders', like a rhinovirus (the virus responsible for the common cold). Once an infective micro-organism enters the body, lots of different cell types...
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Answered by Alisha C. • Biology tutor
3233 Views

What is the ablative case?

Latin is very clever. It's much more economical than English and can get across a lot of meaning in much fewer words. A good example of this is the ablative case, which is probably the strangest grammatical ...
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Answered by Hamish U. • Latin tutor
14153 Views

What are the main challenges that the EU has posed to the European nation states?

The functioning of the European Union is founded on two foundations: The Treaties, and the enforcement of the Treaties. The Treaty on the Function of the European Union, TFEU, defines how Member States shoul...
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Answered by Victor M. • Politics tutor
2074 Views

where does gas exchange occur in the lungs

gas exchange occurs in the alveolus of the lungs. Alveoli provide a good surface for gas exchange to take place.They provide a large surface area to volume ratio which increases the amount of gas that can be...
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Answered by Amelia G. • Biology tutor
7017 Views

What is integration?

when integrating a function which describes a certain curve, the answer we get gives us the area under the curve. When integrating a general polynomial you simply add 1 to the power and divide by the new pow...
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Answered by Jacob G. • Maths tutor
3528 Views