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Active transport is the transport of substances against their concentration gradient with the use of energy. Molecules naturally flow down their concentration gradient, ie. from where they are more concen...

We will begin by eliminating fractions in the equation. To do this, the equation will be multiplied by 4 and (x+2), as these are the denominators of the two fractions.
Multiplying by 4 gives:x - (8x/...

At GCSE level essays should be structured with a simple Introduction- 3/4 paragraphs- Conclusion structure.Introduction: This should lay out your argument for the essay, and show how you will go about arg...

The Baroque period was between the years 1600 and 1750. Key features included small orchestras, with often a focus on the harpsichord or string instruments, and often polyphonic textures. Example composer...

The Earth's atmosphere scatters incoming light from the sun. This incoming light is made up of lots of different colours. Each colour of light has a different wavelength and because of this, different col...