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What is the role of the kidneys in osmoregulation?

Osmoregulation is the homeostatic control of the water potential of the blood. The kidneys are involved in filtering the blood and deciding which substances to reabsorb and which to excrete as waste. Tiny tu...
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The equation of curve C is 3x^2 + xy + y^2 - 4x - 6y + 7 = 0. Use implicit differentiation to find dy/dx in terms of x and y.

6x + xdy/dx + y + 2ydy/dx - 4 - 6dy/dx = 0xdy/dx + 2ydy/dx - 6dy/dx = 4 - 6x - ydy/dx (x + 2y - 6) = 4 - 6x - ydy/dx = (4-6x-y)/x+2y-6)
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Make s the subject of :v^2 = u^2 +2*a*s

v^2 = u^2 +2 a s, v^2-u^2 = 2 a s, (v^2-u^2)/2*a = s, End
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Answered by Phillip S. • Maths tutor
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How does the process of DNA replication work?

DNA replication is the process by which DNA makes a copy of itself. This happens before cell division so that each daughter cell receives an identical copy of the DNA. In order for DNA replication to occur, ...
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Answered by Clare H. • Biology tutor
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Make x the subject of the formula when: y = 6-2x / 8

The first step is to multiply both side by 8, as this will cancel out the 8 that is beneath the 6-2x. This will then make the equation look like this: 8y = 6-2x. As we are making X the subject of the formula...
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Answered by Elia W. • Maths tutor
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