000 02759cam a22003973u 4500
001 47848
003 UtSlPG
005 20260610134111.0
006 m
007 cr n
008 260607r2015||||utu|||||o|||||||||||||| d
040 _aUtSlPG
041 7 _aen
_2iso639-1
050 4 _aQH
_aQL
100 1 _aWeismann, August,
_d1834-1914
245 1 0 _aStudies in the Theory of Descent, Volume II
264 1 _aSalt Lake City, UT :
_bProject Gutenberg,
_c2015
300 _a1 online resource :
_bmultiple file formats
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
500 _aRelease date is 2015-01-02
508 _aProduced by Marilynda Fraser-Cunliffe, Charlie Howard, and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
520 _a"Studies in the Theory of Descent, Volume II" by August Weismann is a scientific publication written in the late 19th century. This work delves into the concepts of biological development, focusing particularly on the independence and variability of the different stages of metamorphosis in insects. Weismann explores the relationship between larva and imago, or the adult stage, presenting various cases that demonstrate how these stages can exhibit independent variations despite being part of the same organism. At the start of the volume, Weismann introduces the idea that the physical structure of the larva and its corresponding imago can vary independently of each other. He discusses how these variations can manifest differently across species and stages of development, addressing questions about the influences that cause such differences—whether they arise from inherent biological factors or external environmental conditions. Through examples from Lepidoptera, he argues that changes in one developmental stage do not necessarily affect the others, setting the foundation for a deeper investigation into the nature of organismal development and the mechanics of evolutionary change. This opening establishes a framework for understanding variability and adaptation in the context of evolutionary theory, aiming to link morphological changes with environmental interactions. (This is an automatically generated summary.)
534 _nOriginal publication data not identified
653 _aInsects
653 _aHeredity
653 _aZoology
653 _aButterflies
653 _aLepidoptera
653 _aInsects -- Evolution
653 _aMechanism (Philosophy)
700 1 _aDarwin, Charles,
_d1809-1882
700 1 _aMeldola, Raphael,
_d1849-1915
856 4 0 _uhttps://www.gutenberg.org/ebooks/47848
999 _c88687
_d88687