natural classification वाक्य
उदाहरण वाक्य
मोबाइल
- Strickland and others specifically rejected the use of relations of " analogy " in constructing natural classifications.
- De Bary used Voronin's materials on smut fungi in his variant of natural classification of fungi.
- These systems were eventually discarded in favour of principles of genuinely natural classification, namely based on evolutionary relationship.
- Based on molecular data this is not a natural classification however, as the ciscoes are polyphyletic, comprising two different lineages within the freshwater whitefishes.
- Between 1650 and 1700 CE there was a move from the utilitarian back to a scientific natural classification based on the characters of the plants themselves.
- His 1955 monograph, " The natural classification of the families of Coleoptera ", established a system for the classification of beetles that remains in use.
- Though many attempts were made to create a more natural classification of the Basidiomycota, the Aphyllophorales continued to be used ( at least by some ) until entirely superseded in the 1990s by classification systems based on cladistic analysis of DNA sequences.
- Caesalpino proposed classes based largely on the detailed structure of the flowers and fruit; He was the first to try and derive principles of natural classification reflecting the overall similarities between plants and he produced a classification scheme well in advance of its day.
- As part of a move towards a more natural classification of fungi, R . T . Moore proposed in 1987 that " Rhizoctonia " should be restricted to the type species and its relatives, with unrelated species moved to other genera.
- While taxonomic classification is concerned with the production of natural classifications ( being natural understood either in phylosophical basis for pre-evolutionary thinking, or phylogenetically as non-polyphyletic ), plant-life form classifications uses other criteria than naturalness, like morphology, physiology and ecology.
- Gray used a combination of Linnaeus'sexual classification and Jussieu's natural classification to group together a number of families having in common six equal stamens, a single style and a perianth that was simple and petaloid, but did not use formal names for these higher ranks.
- Some of the plant families still retain the names of Linnaean " natural orders " or even the names of pre-Linnaean natural groups recognised by Linnaeus as orders in his natural classification ( e . g . " Palmae " or " Labiatae " ).
- In an earlier attempt to improve the classification of animals, Cuvier transferred the concepts of Antoine-Laurent de Jussieu's ( 1748-1836 ) method of natural classification, which had been presented in 1789 in " Genera plantarum ", from botany to zoology.
- With a move towards a more natural classification of fungi, the genus " Sclerotium " is now restricted to sclerotial anamorphs of " Typhula ", since the type species, " Sclerotium complanatum ", is the anamorph of " Typhula setipes ".
- In 1798 Cuvier published his first independent work, the " Tableau �l�mentaire de l'histoire naturelle des animaux ", which was an abridgment of his course of lectures at the �cole du Pantheon and may be regarded as the foundation and first statement of his natural classification of the animal kingdom.
- Frenchman Michel Adanson ( 1727 1806 ) in his " " ( 1763, 1764 ), apart from extending the current system of family names, emphasized that a natural classification must be based on a consideration of all characters, even though these may later be given different emphasis according to their diagnostic value for the particular plant group.
- Upon these follow special methods of induction applicable to quantity : the method of curves, the method of means, the method of least squares and the method of residues, and special methods depending on resemblance ( to which the transition is made through the law of continuity ), such as the method of gradation and the method of natural classification.
- It is best, however, not to narrow unnecessarily the sphere of classicity; to exclude Terence on the one hand or Tacitus and Pliny on the other, would savour of artificial restriction rather than that of a natural classification . " ( This from a scholar who had just been complaining that golden Latin was not a natural language . ) The contradiction remains; Terence is and is not a classical author depending on context.
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