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How does the body regulate heat?

Body temperature is regulated by a thermoregulatory centre in the brain, the hypothalamus. The hypothalamus can sense the temperature of the blood via receptors. The skin also contains temperature receptors ...
NC
Answered by Natasha C. • Biology tutor
3148 Views

Solve 4x^2 - 3x - 4 = 0

There are two different methods of solving this equation and it is important to find the method that you find easiest. The first method is to split up the numbers and the letters on both sides of the equatio...
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Answered by Oliver H. • Maths tutor
5546 Views

The circle c has equation x^2+y^2 = 1 . The line l has gradient 3 and intercepts the y axis at the point (0, 1). c and l intersect at two points. Find the co-ordinates of these points.

When approaching intersection problems, it is important to have both equations and solve them by substituting one into the other or simultaneously. First we need to find the equation of the line l since we a...
ET
Answered by Ellen T. • Maths tutor
4373 Views

How would I analyse an unseen poem in an exam?

What is the poem actually about? - what is the subject/content? - first impressions/surface-level ideas - then second thoughts/ is there a subtext? Is the poem what you initially thought it was about? Is the...
EG
6036 Views

How do you change nouns from singular to plural?

To start with, we're going to need to change the original 'le/la/un/une' (the article) to 'les' or 'des', and these apply whether the noun is masculine or feminine - we'd use 'les' if we want to say 'the', a...
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Answered by Nicola M. • French tutor
12142 Views