The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for LifeWerner Company, Book Manufacturers, 1900 - 538페이지 |
도서 본문에서
64개의 결과 중 1 - 3개
18 페이지
... Domestic Varieties from one or more Species . When we look to the hereditary varieties or races of our domestic animals and plants , and compare them with closely allied species , we generally perceive in each domestic race , as already ...
... Domestic Varieties from one or more Species . When we look to the hereditary varieties or races of our domestic animals and plants , and compare them with closely allied species , we generally perceive in each domestic race , as already ...
23 페이지
... Domestic Pigeon , their Differences and Origin . Believing that it is always best to study some special group , I have , after deliberation , taken up domestic pigeons . I have kept every breed which I could pur- chase or obtain , and ...
... Domestic Pigeon , their Differences and Origin . Believing that it is always best to study some special group , I have , after deliberation , taken up domestic pigeons . I have kept every breed which I could pur- chase or obtain , and ...
175 페이지
... domestic animals were originally chosen by uncivilised man because they were useful and because they bred readily under confinement , and not because they were subsequently found capable of far - extended transportation , the common and ...
... domestic animals were originally chosen by uncivilised man because they were useful and because they bred readily under confinement , and not because they were subsequently found capable of far - extended transportation , the common and ...
기타 출판본 - 모두 보기
자주 나오는 단어 및 구문
adapted advantage allied animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree descendants developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less males manner Melipona Mivart modified natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species parent perfect period pigeons pollen pollen-grains present preserved prey principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens structure struggle supposed swimbladder tend tendency tion tree variability variations varieties vary widely wings young