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Oxbow lakes are created where meanders are found on a river's long profile. On a meander bend, the fastest flow of water occurs on the outside bend, causing erosion, whilst the slowest flow is on the insi...

According to the quotient rule, when y(x)=f(x)/g(x), y'(x)=(f'(x)g(x)-g'(x)f(x))/g(x)²

f(x)=9e^7x f'(x)=63e^7x, g(x)=12e^2x g'(x)=24e^2x

y...

The kidneys can be split into 5 main sections. Firstly we have the glomerulus. Blood enters the kidneys via the afferent arteriole and then travels to the glomerulus which is just a cluster of capillaries...

Nerve impulses are transmitted along the axon by saltatory propagation. This is where the wave of depolarisation jumps across to small gaps known as nodes of ranvier, dramatically reducing the time taken ...

Air is breathed in through the nose and the mouth. It makes its way down the trachea (windpipe) and enters into the lungs. The air enters into the small sacs of the lungs called alveoli which in a microsc...