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How do we classify living organisms?

Traditionally we have classified living organisms into groups based on their structure and morphology (essentially how they look!). This was a system developed by a scientist called Linnaeus in the 1700's...

Answered by Bryony P. • Biology tutor

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why do metallically bonded structures conduct electricity

In order for metals to bond they need to loose electrons to ensure that they have a full outer shell and become positively charged. The positive cations (metal ions) are attracted to the negatively charge...

Answered by Lauren P. • Chemistry tutor

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By expressing cos(2x) in terms of cos(x) find the exact value of the integral of cos(2x)/cos^2(x) between the bounds pi/4 and pi/3.

cos(2x)=cos²(x)-sin²(x)=2cos²(x)-1
Therefore:cos(2x)/cos²(x)=(2cos²(x)-1)/cos²(x)=2cos²(x)/cos²(x) - 1/cos

Answered by Hugo F. • Maths tutor

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Evaluate the usefulness of Source C as evidence of the subjugation of the Scots by Edward I in 1296. (6 marks).

Source C is an extract from the Chronicle of Walter of Guisborough. This makes the source useful, as chronicles were generally factually based accounts of historical events in chronological order, which c...

Answered by Megan R. • History tutor

3143 Views

What is the basic Economic problem, and how does Economics as a discipline approach this?

The basic economic problem is usually defined as there being a situation of scarce resources but an unlimited or infinite number of wants and demands for these resources. Economics as a discipline seeks t...

Answered by Alexander M. • Economics tutor

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