Usage History of 'heterotrophs'

The following chart shows how frequently 'heterotrophs' appeared in printed materials over time. For example, the word 'heterotrophs' occurred 6 times in books in 1873 and 3,561 times in 2008. From 1873 to 2008, the word 'heterotrophs' was used a total of 100,294 times in books scanned by Google. See Reference: Google Ngram project.

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