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Explain how evolution by natural selection brings about changes in a species ?

Variation is present in a population, this can either be genetic variation or due to mutations. A selectional pressure causes a stuggle for existance. Selectional pressures can come from a predator, disea...

MS
Answered by Martina S. Biology tutor
2894 Views

How do I structure an essay?

To make it easier for you to keep hold of your ideas, you can summarise your points in your introduction. For example, if I was writing an essay about Christmas, I might say; 'In order to explain what Chr...

AV
3708 Views

How does adult cell cloning occur?

In adult cell cloning, an egg cell is taken from a donor animal - such as a sheep - and it is enucleated. This means that the nucleus which contains all of the genetic information of the sheep is removed ...

SH
Answered by Shan H. Biology tutor
4712 Views

Analyse the way in which Shelley presents power in 'Ozymandias'

Shelley presents power as fleeting and transient through his imagery of a forgotten statue in his poem Ozymandias. The imperative command of the deceased ruler 'Look on my Works, ye mighty, and despair' c...

MB
Answered by Maya B. English tutor
7544 Views

Explain why Christians might provide a religious upbringing for their children.

Many Christian couples will feel motivated to raise their children as Christians for a number of reasons. Firstly, many Christians believe that only those who know and believe in the Christian God can rea...

HH
3737 Views

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