write a short note on use and disuse theory?
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First Law [Use and Disuse]: In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ ...
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theory is used to give us understanding. As well as describing theory the page gives a brief introduction to the steps involved in the construction of theory.
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