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Everyone revises differently, but I believe that the most efficient revision methods are active, rather than just reading notes. If you are a visual learner, my top tip would be making posters to put up a...

Type of receptor and stimulus e.g. eye receptors and light. Information is passed from the receptor to the effector by neurones: sensory, relay and motor. The receptor converts the stimulus into electric...

Any from:Plant cells have a cell wall and animal cells don't.Plant cells contain chloroplasts and animal cells don't.Plant cells usually have one large central vacuole whereas animal cells can have many s...

Eutrophication (also called algal bloom) is a massive growth of green plants in lakes and rivers, caused by the use of fertilisers in industry, washed off the land by rain.The fertilisers cause the green ...

A plant cell contains the following which an animal cell does not:ChloroplastsPermanent vacuole filled with sapCellulose cell wall
Animal a...