Charles Darwin book Insectivorous Plants
Detractors sometimes claim Darwin thought that the cell was an undifferentiated mass of protoplasm. Anyone reading the passage above will realize that Darwin thought no such thing. <br class="br">Source: Insectivorous Plants (1875), chapter III: "Aggregation of the Protoplasm within the Cells of the Tentacles", page 40 http://darwin-online.org.uk/content/frameset?pageseq=55&itemID=F1217&viewtype=image