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What Mechanisms control the human body's temperature ?

Thermoregulatory homeostasis helps to maintain the core body temperature at 37 degrees Celsius.When we are too hot the body's sweat glands secrete sweat onto the skin which then evaporates, allowing us to co...
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Answered by Alexandra D. • Biology tutor
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Why did Tsarism collapse in February 1917?

There are two main reasons why Tsar Nicholas II abdicated in February 1917, leaving behind a Provisional Government. The first reason is the First World War. The second, interrelated reason is Russia's weak ...
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Answered by James S. • History tutor
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Find the roots of the following curve: y = 6x^2 - 4x.

The two terms in the quadratic equation share the factors 2 and x , so these can be brought outside the bracket as shown: y = 2x(3x-2). In order to solve for the roots (where the curve intercepts the x-axis)...
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Answered by Sam K. • Maths tutor
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Complete the square of X^2 + 4X - 12

X^2 + 4X - 12X^2 + yX + z(x + a)^2 + ba = y/2a = 4/2 = 2b = z - a^2b = -12 -2^2 = -16Therefore: x^2 + 4x - 12 = (x+2)^2 - 16
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Answered by Anastasia R. • Maths tutor
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Work out the value of (16/81)^3/4

Treat each component separately and break it down...Note that when a number has a power that is a fraction, the numerator acts as a power and the denominator acts as a root(16)^1/4 = 2. Okay, brilliant!So wh...
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Answered by Maisie T. • Maths tutor
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