JACOPIN / SCIENCE PHOTO LIBRARY JACOPIN / SCIENCE PHOTO LIBRARY
CELL, DRAWING Emergence of eukaryotes. Illustration of one theory concerning the origin of eukaryotes (cells containing a nucleus): Several bacteria (prokaryotes) group together, forming a multicellular organism, prior to the formation of the various elements specific to the eukaryotic cell.
Model release not required. Property release not required.