. The biology of senescence. Old age; Aging; Longevity. Growth and Senescence 22nd instars, without reference to the chronological age which these may represent. (Figs. 37, 38, 39.) In D. magna, Anderson and Jenkins (1942) found a mean life-span of 960 hours or 17 instars—the number of pre-adult instars varied from 4 to 6 and Well-fed (Normal) Starved until 6th instar Starved throughout life 1015. Fig. 38.—Effect of restricted food upon the duration of instars in Daphnia longispina (from Ingle et al., 1937). the differences in longevity between individuals represented differences in the length
. The biology of senescence. Old age; Aging; Longevity. Growth and Senescence 22nd instars, without reference to the chronological age which these may represent. (Figs. 37, 38, 39.) In D. magna, Anderson and Jenkins (1942) found a mean life-span of 960 hours or 17 instars—the number of pre-adult instars varied from 4 to 6 and Well-fed (Normal) Starved until 6th instar Starved throughout life 1015. Fig. 38.—Effect of restricted food upon the duration of instars in Daphnia longispina (from Ingle et al., 1937). the differences in longevity between individuals represented differences in the length of the pre-adult period. (See also Dunham, 1938.) The finding of Fritsch (1953) that the pan- tothenic acid content of the medium is a major factor in 145. 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 Comfort, Alex, 1920-. New York, Rinehart
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Keywords: ., bookcentury1900, booksub, booksubjectlongevity, booksubjectoldage
