The heart is an example of an organ or a muscle.
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Eggs do not grow, they are produced by other animals. Such as chickens.
<span>There are a wide range of degenerative diseases that can affect the nervous system. Dependent on the patient's age and hereditary history, the disorder could be any one of the following amongst others: Alzheimers Disease, Huntingdon Chorea, Parkinsons Disease, Multiple Sclerosis, ALS or Amyotrophic Lateral Sclerosis.</span>
