. The biology of Stentor. Stentor. 174 THE BIOLOGY OF STENTOR posterior end of the primordium act upon it to cause formation of mouthparts and that when the anlage is shifted away from this environment such induction is missing. Later primordia in stage 4 or 5 have already received this influence and are then semi- autonomous systems capable of complete self-differentiation regardless of their Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfec


. The biology of Stentor. Stentor. 174 THE BIOLOGY OF STENTOR posterior end of the primordium act upon it to cause formation of mouthparts and that when the anlage is shifted away from this environment such induction is missing. Later primordia in stage 4 or 5 have already received this influence and are then semi- autonomous systems capable of complete self-differentiation regardless of their Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tartar, Vance, 1911-. New York, Pergammon Press


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