Top answers

How does a vaccine work?

A vaccine contains a dead or inactive (an therefore harmless) form of a pathogen. By injecting this into the body, an immune response is triggered and white blood cells produce antibodies specific to the ant...
TP
Answered by Tianna P. • Biology tutor
5814 Views

Will the interview try to trick me?

The simple answer is no. They will never try to trick you. The reason why Oxbridge interview is so that they can get a real sense of passion for your subject, which doesn't always come across on paper. So go...
LC
1976 Views

How can I tell the difference between the imperfect/pluperfect/perfect tenses? When do I use them?

In English, we don't even think about the tenses we use – they come naturally to us. In French, we need to think a bit more about which tenses we use. Imagine a timeline in your head. What we are doing right...
GB
Answered by George B. • French tutor
9888 Views

How can I prepare for my Italian oral exam?

Oral exams can be daunting because you are never quite sure what will come up and you have to think on the spot. There are many ways you can prepare, however. There will be subjects in the curriculum that wi...
JG
Answered by Jennifer G. • Italian tutor
10883 Views

What do the numbers mean at the side of an element in the periodic table?

The top number is the total mass number, particles in an atom of an element that have mass are protons and neutrons. So the top number tells us how many protons and neutrons there are in an atom of that elem...
CN
50960 Views