. The biology of death; being a series of lectures delivered at the Lowell Institute in Boston in December 1920. Death (Biology). THE PROBLEM 31 occurred, we may with, reasonable assurance conclude that this animal is immortal. Of even more probative value, in the opinion of some workers, than the results on Paramedian are. m- Fia. 3.—^Paramecium, viewed fron the oral surface. L. left side; R, right side; an., anus; ec., ectosarc;en.» endosarc;/. »., food vacuoles;^;, gullet; wi, mouth; ma., macronucleus; mi., micronucleus; o. g., oral groove; P., pellicle; ir., trichocyst layer. The arrows sh
. The biology of death; being a series of lectures delivered at the Lowell Institute in Boston in December 1920. Death (Biology). THE PROBLEM 31 occurred, we may with, reasonable assurance conclude that this animal is immortal. Of even more probative value, in the opinion of some workers, than the results on Paramedian are. m- Fia. 3.—^Paramecium, viewed fron the oral surface. L. left side; R, right side; an., anus; ec., ectosarc;en.» endosarc;/. »., food vacuoles;^;, gullet; wi, mouth; ma., macronucleus; mi., micronucleus; o. g., oral groove; P., pellicle; ir., trichocyst layer. The arrows show the direction of movement of the food vacuoles. (From Jennings). the recent experiments of Hartmann, who cultivated Eudorina elegans for over 600 generations without con- jugation or any nuclear reorganization corresponding to endomixis, and no depression in the culture occurred. The distinctiotti between Protozoa and Metazoa in. 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 Pearl, Raymond, 1879-1940. Philadelphia, London, J. B. Lippincott Company
Size: 1111px × 2249px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublisherphila, bookyear1922
