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GCSE

How does HIV invade cells?

The way a simple virus invades a cell is with double stranded DNA replication. The virus has a coat of protein covering the DNA, once bound to the side of the cell the virus releases the DNA where it is t...

SC
Answered by Susanna C. Biology tutor
3980 Views

How should I structure my essay?

The way in which an essay is structured makes a huge difference to its effectivity and is one of the key criteria in receiving a good mark. The first crucial component of a successful essay is a good intr...

JB
Answered by Jasmine B. English tutor
2874 Views

How can a tax be represented in a simple demand and supply diagram?

A tax can be indirect, imposed by the government on goods and services (e.g VAT) or direct (e.g. income tax). There are 2 types of indirect taxes: specific tax, which is a set amount and ad valorem, a per...

CN
14879 Views

How can I prepare for my writing paper?

Having a good range of topic specific vocabulary is key. The writing papers are not massively long; however, it is important that you include grammatical structures to show the examiner your understanding...

PM
Answered by Philip M. French tutor
2798 Views

There are 40 pencils in a box. There are 15 pens in a packet. John gives one pencil and one pen to each person at a conference. He has no pencils or pens left. How many boxes of pencils and how many packets of pens did John buy?

Multiples of 15: 15, 30, 45, 60, 75, 90, 105, 120 Mulitples of 40: 40, 80, 120 This means that there are 120 people at the conference, and that he sold 3 boxes of pencils (40x3=120) and 8 boxes of pens (1...

AP
Answered by Anastasia P. Maths tutor
23681 Views

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