Biology B1b Electrical & Chemical Signals

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  • Created by: Vaishali
  • Created on: 11-02-11 20:07

The brain is the most delicate organ in our body. It receives, stores and recalls information as well as instructing and co-ordinating actions. But sometimes things can go wrong

Tumours can occur when brain cells divide and grow uncontrollably.

The tumour puts pressure on parts of the brain preventing them from working properly.

Parkinson's Disease is caused by a lack…


sandie evans


very easy to understand.  meant to rate it three stars but my mouse got stuck. sorry.

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