Darwiniana: EssaysD. Appleton, 1897 - 475페이지 |
도서 본문에서
53개의 결과 중 1 - 5개
페이지
... characters in some cases ; and the struggle for existence within the organism , which probably lies at the bottom of both of these phenomena . Some apology is due to the reader for the repro- duction of the " Lectures to Working Men in ...
... characters in some cases ; and the struggle for existence within the organism , which probably lies at the bottom of both of these phenomena . Some apology is due to the reader for the repro- duction of the " Lectures to Working Men in ...
16 페이지
... character , and breeds from them . Their offspring are then carefully examined , and those which exhibit the peculiarity the most distinctly are selected for breeding ; and this operation is repeated until the desired amount of ...
... character , and breeds from them . Their offspring are then carefully examined , and those which exhibit the peculiarity the most distinctly are selected for breeding ; and this operation is repeated until the desired amount of ...
19 페이지
... characters of a new species . But , on the other hand , if the conditions of life change in any degree , however slight , B may no longer be that form which is best adapted to with- stand their destructive , and profit by their sus ...
... characters of a new species . But , on the other hand , if the conditions of life change in any degree , however slight , B may no longer be that form which is best adapted to with- stand their destructive , and profit by their sus ...
26 페이지
... character . That part of biological science which deals with form and structure is called Morphology — that which concerns itself with function , Physiology— so that we may conveniently speak of these two senses , or aspects , of ...
... character . That part of biological science which deals with form and structure is called Morphology — that which concerns itself with function , Physiology— so that we may conveniently speak of these two senses , or aspects , of ...
27 페이지
... characters , as far as the fifth in the above list , all asses have tufted tails , and have callosities only on the inner side of the fore - legs . If animals were discovered having the general characters of the horse , but sometimes ...
... characters , as far as the fifth in the above list , all asses have tufted tails , and have callosities only on the inner side of the fore - legs . If animals were discovered having the general characters of the horse , but sometimes ...
기타 출판본 - 모두 보기
자주 나오는 단어 및 구문
adapted Agamogenesis Ancon animalcules animals animals and plants appear beds biological birds body bones called carbonic acid causes character Charles Darwin common course creation cross curious Darwin Darwin's views deposited direct doctrine of evolution domestic pigeons doubt endeavour epigenesis epoch Erasmus Darwin evidence ex nihilo experiments extinct fact favour forms fossil geological germ groups horse Hyæna hypothesis ichthyosaurus inorganic world inquiry kind knowledge Lamarck lectures less living male matter means mind Mivart modification natural selection naturalists observation offspring operation organic nature organisation Origin of Species parent peculiar perpetuation phenomena physiological pigeons Pikermi Pouter present primitive stock produced Quarterly Reviewer question races reason remarkable result Rock Pigeon scientific selective breeding sense sheep skeleton sort speculations spontaneous structure Suarez substance suppose Teleology tendency theory thing tion toes variation varieties vary vegetable whole