Haloom Rafehi added para 4.tex  over 9 years ago

Commit id: 0a4ce8bcd9e4bf8d42b86fe35b7d0b685d590890

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\begin{enumerate}  \item that when the organisation has once begun to vary, it generally continues to vary for many generations.  \end{enumerate}  No case is on record of a variable being ceasing to be variable under cultivation. Our oldest cultivated plants, such as wheat, still often yield new varieties: our oldest domesticated animals are still capable of rapid improvement or modification.