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How does an endotherm respond to a decrease in external temperature?

What's an endotherm? An animal that can increase its body temperature by metabolically produced heat. Why does a decrease in temperature matter? 37ºC is the optimal temperature for enzyme function – endother...
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Answered by Felix B. • Biology tutor
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Outline the fight or flight response

The fight or flight response is the body and brains reaction to a situation, resulting in either to withstand the situation (fight) or flee the situation (flight). Firstly the hypothalamus,a region of the fo...
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Answered by Katie S. • Geography tutor
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The curve C is paramterised by the equations: x = 5t + 3 ; y = 2 / t ; t > 0 Find y in terms of x and hence find dy/dx

x = 5t + 3 -> x - 3 = 5t -> (x - 3) / 5 = t y = 2 / t -> y = 2 / ((x - 3) / 5) -> y = 10 / (x - 3) dy/dx = d/dx (10 / (x - 3)) -> dy/dx= -10 (x - 3) -2
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Answered by Dylan C. • Maths tutor
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Answered by Ertug A. • Maths tutor
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How do you divide polynomials? How do you do it with remainder?

I'll show you on a whiteboard or a piece of paper, there's a nice grid method you can use which is a lot easier (I think) than the weird long division way I got taught in school.
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Answered by Tutor115090 D. • Maths tutor
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