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An oxygen-haemoglobin dissociation curve shows how saturated haemoglobin gets with oxygen at different partial pressures. The beginning of the curve starts off shallow, this is due to the tight quarternar...

Begin by reminding yourself of the PEE format (point, evidence, explanation). It is important to have a clear line of argument in an essay. You should begin by outlining what you will write about in the p...

All matter is made up of particles and there are three states of matter that particles can be in: solid, liquid, or gas. We can represent the different states of matter using the simple Particle Model, wh...

Both prokaryotic and eukaryotic cells have a nucleus which is responsible for controlling cellular activity.Both cell types also have ribosomes which produce proteins and both are bound by a cell membrane...

Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration,whereas osmosis is the passive movement of solut...