Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Сторінка 33
... genera are again grouped into families or orders . Now the group species " was supposed to have a precise bound- ary ... genera , etc. It was generally agreed that , while species were natural groups - i . e . , real groups existing in ...
... genera are again grouped into families or orders . Now the group species " was supposed to have a precise bound- ary ... genera , etc. It was generally agreed that , while species were natural groups - i . e . , real groups existing in ...
Сторінка 34
... genera after all but dilatations , as it were , along a chain which is composed of separate , though differently shaped links ? The links , or the actual independent bodies which constitute the chain , are the species ; but the knobs or ...
... genera after all but dilatations , as it were , along a chain which is composed of separate , though differently shaped links ? The links , or the actual independent bodies which constitute the chain , are the species ; but the knobs or ...
Сторінка 35
... genera which agree in some more general char- acters than those which unite species into genera . " I wish you to notice that while genera and families are defined as related by community of structure only , species are defined as ...
... genera which agree in some more general char- acters than those which unite species into genera . " I wish you to notice that while genera and families are defined as related by community of structure only , species are defined as ...
Сторінка 36
... genera . " is , they would allow that the lion , tiger , leopard , and all the cat genus , have had a common origin , but they deny that cats and dogs are in any way related . This error arose from not knowing what naturalists meant by ...
... genera . " is , they would allow that the lion , tiger , leopard , and all the cat genus , have had a common origin , but they deny that cats and dogs are in any way related . This error arose from not knowing what naturalists meant by ...
Сторінка 37
... Genera , orders , and even classes do the same ; but these are avowedly artificial groups . Exceptions to this rule occasionally occur ; but this is probably due to the connecting links not having been dis- covered . If we have a few ...
... Genera , orders , and even classes do the same ; but these are avowedly artificial groups . Exceptions to this rule occasionally occur ; but this is probably due to the connecting links not having been dis- covered . If we have a few ...
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Darwinism and Lamarckism, Old and New: Four Lectures Frederick Wollaston Hutton Повний перегляд - 1899 |
Darwinism and Lamarckism, Old and New: Four Lectures Frederick Wollaston Hutton Повний перегляд - 1899 |
Darwinism and Lamarckism Old and New Frederick Wollaston Hutton Попередній перегляд недоступний - 2014 |
Загальні терміни та фрази
acquired characters action of external action of natural action of selection adapted animals and plants arise artificial selection become biology birds called cause cells Chatham Island colour congenital consequently Darwin definite variation despotism different species direct action divergent evolution domesticated doubt earth environment evidence explain external conditions extrinsic selection facts fancy pigeons favour fertile flatfish flowers gemmules genera genus germ-cells groups Herbert Spencer hypothesis idea important indefinite infertility inheritance insects island kinetogenesis Lamarck Lamarckians large number lecture living means mental variations modification Moritz Wagner natural selection naturalists Neo-Lamarckians North Island notochord number of individuals offspring opinion organic evolution organisation Origin of Species Pangenesis physical isolation physiological isolation plants and animals post-natal present principle of selection produced Professor progress Radiolarians reason recognition-marks says science of history structure struggle for existence suppose take place theory tion transmitted use-inheritance varieties vary vertebræ Zealand