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Explain how blood vessels help to regulate a human's body temperature (3marks)

The blood vessels dilate and widen, which means that the blood flows closer to the surface of the skin, so more heat is able to be released, which cools the overall body temperature.

Answered by Bill C. Biology tutor
2044 Views

To what extent was the United States responsible for the collapse of the Grand Alliance at the end of the Second World War?

In writing this essay, the first thing to note is the structure of the question – ‘to what extent’ – this means that the essay will have to have two sides and deal both with the United States and the Sovi...

Answered by History tutor
8187 Views

Explain how a stack could be used in the process of evaluating an expression in Reverse Polish notation.

Starting at the left hand side of the expression push values onto stack. Each time operator reached in the expression pop the top two values off the stack and apply the operator to them, then push the new...

Answered by Ellie F. Computing tutor
2808 Views

Simultaneous equations - Find the values of y and x: 3

3x + 5y = 19 and4x - 2y = -18Find the common multiple for 3x and 4x to enable it to be cancelled out. In this case it would be 124(3x + 5y) = 4(19) 3(4x - 2y) = 3(-18) 12x + 20y = 76 12x - 6y = -54 12x + ...

Answered by Zyen U. Maths tutor
2859 Views

To what extent was there a Mid-Tudor Crisis? (1547-1558)

Firstly we must define 'crisis'- if we take crisis to mean that the monarchy was at breaking point, or the point of being overthrown, then there was not a crisis, although there were serious issues going ...

Answered by Felicity E. History tutor
6173 Views

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