Varieties

(pl. ) of Variety

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• I have as yet spoken as if the varieties of the same species were invariably fertile when intercrossed. 查尔斯·达尔文. 物种起源.
• The difficulty in distinguishing variable species is largely due to the varieties mocking, as it were, other species of the same genus. 查尔斯·达尔文. 物种起源.
• In this respect, therefore, the species of the larger genera resemble varieties, more than do the species of the smaller genera. 查尔斯·达尔文. 物种起源.
• Many varieties of coal produce a quantity of fine dust which settles in the roadways, on roof, and sides, and floor. 佚名. 神奇的知识之书.
• Several cases are on record of the same species presenting varieties in the upper and lower parts of the same formation. 查尔斯·达尔文. 物种起源.
• If such gradations were not all fully preserved, transitional varieties would merely appear as so many new, though closely allied species. 查尔斯·达尔文. 物种起源.
• In genera having more than the average number of species in any country, the species of these genera have more than the average number of varieties. 查尔斯·达尔文. 物种起源.
• If, then, it varied, natural selection would probably favour different varieties in the different islands. 查尔斯·达尔文. 物种起源.
• He studied the sp ecies in their natural setting, the habitat, and range, and habits, and food of the different varieties. 李贝. 西洋科学史.
• Independently of the question of fertility, the offspring of species and of varieties when crossed may be compared in several other respects. 查尔斯·达尔文. 物种起源.
• I have met with striking instances of the rule in the case of varieties intermediate between well-marked varieties in the genus Balanus. 查尔斯·达尔文. 物种起源.
• In one district several varieties occurred, and of these one alone resembled, to a certain extent, the common Ithomia of the same district. 查尔斯·达尔文. 物种起源.
• No; but it can give varieties of pain, and prevent us from breaking our hearts with a single tyrant master-torture. 夏洛蒂·勃朗特. 雪莉.
• Rival companies have sprung up, using slightly different varieties of apparatus. 鲁伯特·萨金特·荷兰. 历史性发明.
• There are several varieties, as the Irish greyhound, the Scottish, the Russian, the Italian and the Turkish. 佚名. 神奇的知识之书.
• By careful selection, many strange varieties have been propagated. 佚名. 神奇的知识之书.
• It was a work of genius, yet no one would claim that it is a mature psychology of the Varieties of Religious Experience. 沃尔特·李普曼. 政治序论.
• The same has been found to hold good when one variety and several mixed varieties of wheat have been sown on equal spaces of ground. 查尔斯·达尔文. 物种起源.
• The amazingly large number of different varieties which we have today have all been brought into existence through the discovery of the process of grafting. 佚名. 神奇的知识之书.
• Even Ireland has a few animals, now generally regarded as varieties, but which have been ranked as species by some zoologists. 查尔斯·达尔文. 物种起源.
• There are other excellent varieties of vanilla beans, but they have a somewhat ranker flavor than the Mexican. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Moreover, in the case of animals which wander much about and cross freely, their varieties seem to be generally confined to distinct regions. 查尔斯·达尔文. 物种起源.
• From these facts it can no longer be maintained that varieties when crossed are invariably quite fertile. 查尔斯·达尔文. 物种起源.
• Hence the amount of difference is one very important criterion in settling whether two forms should be ranked as species or varieties. 查尔斯·达尔文. 物种起源.
• Varieties generally have much restricted ranges. 查尔斯·达尔文. 物种起源.
• Sounds of all kinds and varieties were heard in every direction. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• So I believe it to be with varieties of plants; and with animals, one variety certainly often has this prepotent power over another variety. 查尔斯·达尔文. 物种起源.
• Oh the varieties of dust for ocular use, offered in exchange for the gold dust of the Golden Dustman! 查尔斯·狄更斯. 我们共同的朋友.
• Different varieties, if not species, characterize the different islands. 李贝. 西洋科学史.
• Of such local varieties there must have been a great multitude. 赫伯特·乔治·威尔斯. 世界史纲.

珍妮特录入