
“A cell is a complex structure, with its investing membrane, nucleus, and nucleolus.”
"Pangenesis -- Mr. Darwin's Reply to Professor Delpino" Scientific Opinion (20 October 1869) page 426 http://darwin-online.org.uk/content/frameset?pageseq=1&itemID=F1748b&viewtype=image
Detractors sometimes claim Darwin thought that the cell was an undifferentiated mass of protoplasm. This quote proves otherwise.
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