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Unicellular organisms have a large surface area to volume that is one cell thick, therefore they have a short diffusion distance and are metabolically inactive. Therefore, they can obtain sufficient oxyge...

Starting by factorising the curve equations: the first one factorises to y = (x-3)(x-2) and the second one becomes y=(2-x)(2+x). From this, a rough sketch of the curves can be drawn and it can be seen tha...

Before starting anything read the poem through twice. The first time read it just to understand meaning and get a grasp of what the author might be trying to say. The second time read the poem and highlig...

The ELAT, although very different from the A-level format should be seen as an exciting challenge rather than a scary task - it gives you lots of freedom to be creative, and as no one has seen the passage...

The relative atomic mass (A_r ) is calculated from 2 things : mass numbers of its isotopes and abundance of these isotopes.Let's use Chlorine as an example. Chlorine naturally exists as two isot...