標(biāo)題: Titlebook: Biology of the Cyclostomes; M. W. Hardisty Book 1979 M. W. Hardisty 1979 Agnatha.biology.development.ecology.evolution.genetics.morphology [打印本頁] 作者: 令人不愉快 時間: 2025-3-21 17:17
書目名稱Biology of the Cyclostomes影響因子(影響力)
書目名稱Biology of the Cyclostomes影響因子(影響力)學(xué)科排名
書目名稱Biology of the Cyclostomes網(wǎng)絡(luò)公開度
書目名稱Biology of the Cyclostomes網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Biology of the Cyclostomes被引頻次
書目名稱Biology of the Cyclostomes被引頻次學(xué)科排名
書目名稱Biology of the Cyclostomes年度引用
書目名稱Biology of the Cyclostomes年度引用學(xué)科排名
書目名稱Biology of the Cyclostomes讀者反饋
書目名稱Biology of the Cyclostomes讀者反饋學(xué)科排名
作者: compassion 時間: 2025-3-21 22:35
Perspectives and relationships, in the Silurian then decreasing in numbers, finally to disappear from the fossil record at the close of the Devonian. Since the first jawed vertebrates, the acanthodians were not to be found earlier than the upper Silurian, it is hardly surprising that the agnathans and gnathostomes should have bee作者: 改正 時間: 2025-3-22 02:50
Ecology and behaviour, distinct species differences, particularly in the depths to which they penetrate. . normally occurs between 50–100 m, but has been recorded down to 1100 m off the Norwegian coast and in Japanese waters . is found between 400–800 m. In some inner fiords, . may occur in much shallower water at about 作者: Lice692 時間: 2025-3-22 07:28
Respiration and feeding,t in myxinoids, although the single median, recurved palatine tooth may help the hagfish to maintain its purchase on its food during the tearing action of its jaws. The biting and rasping teeth of the lamprey are carried on tooth plates above and below the mouth, as well as on the apex of the piston作者: 消音器 時間: 2025-3-22 10:03
The heart and circulatory system,ta gives rise to a series of aortic arches supplying the gills, of which there are eight in the lamprey; the first — the hyoid — serving the anterior hemibranch of the most anterior gill pouch. The remaining afferent arteries divide to supply the anterior and posterior hemibranchs of adjacent gill p作者: evasive 時間: 2025-3-22 15:42 作者: endocardium 時間: 2025-3-22 18:51 作者: tangle 時間: 2025-3-23 00:28 作者: 哥哥噴涌而出 時間: 2025-3-23 01:36
The pituitary,d from the neural tissue of the floor of the diencephalon, and the adenohypophysis, an epithelial component originating from the epithelium of the embryonic mouth cavity. The cyclostomes diverge from the typical vertebrate pattern in that the adenohypophysial tissue develops from a naso-hypophysial 作者: 地名表 時間: 2025-3-23 06:19 作者: 做事過頭 時間: 2025-3-23 12:36
Reproduction and development,of their unpaired gonad indicates that the sexual differentiation of these animals is in a curious transitional state between gonochorism and hermaphroditism. Whether the myxinoids have a determinate life span is unknown, but they certainly produce a succession of eggs; each ovulation being followed作者: CESS 時間: 2025-3-23 17:05 作者: 鍍金 時間: 2025-3-23 20:12
Conclusions and evolutionary perspectives,tic system has a corresponding twin or sister group and that both are derived from a common ancestor (Fig. 14.la). In this dichotomy, one of the sister groups retains to a greater extent the characters of the ancestral group (m.) and is referred to as plesiomorphic (or in L?vtrup’s terminology, ples作者: Reverie 時間: 2025-3-24 01:51 作者: CRUMB 時間: 2025-3-24 05:41
Zielspezifizierung: LehrzielbestimmungThe Cyclostomes, comprising the lampreys and the hagfishes or myxinoids, are a group of eel-like aquatic vertebrates, not widely known outside zoological circles, for whom they have a special interest as the sole survivors of an extinct, but once flourishing, group of jawless or agnathan Palaeozoic ‘fishes’ known as the Ostracoderms.作者: 不來 時間: 2025-3-24 09:20 作者: 斜 時間: 2025-3-24 11:36 作者: 漂泊 時間: 2025-3-24 17:48 作者: 鐵砧 時間: 2025-3-24 23:03
Kompendium multimediales Lernen in the Silurian then decreasing in numbers, finally to disappear from the fossil record at the close of the Devonian. Since the first jawed vertebrates, the acanthodians were not to be found earlier than the upper Silurian, it is hardly surprising that the agnathans and gnathostomes should have bee作者: 喚起 時間: 2025-3-25 01:22
Kompendium multimediales Lernen distinct species differences, particularly in the depths to which they penetrate. . normally occurs between 50–100 m, but has been recorded down to 1100 m off the Norwegian coast and in Japanese waters . is found between 400–800 m. In some inner fiords, . may occur in much shallower water at about 作者: BILE 時間: 2025-3-25 06:37
Kompendium multimediales Lernent in myxinoids, although the single median, recurved palatine tooth may help the hagfish to maintain its purchase on its food during the tearing action of its jaws. The biting and rasping teeth of the lamprey are carried on tooth plates above and below the mouth, as well as on the apex of the piston作者: 鴕鳥 時間: 2025-3-25 10:50 作者: gentle 時間: 2025-3-25 12:08
Kompendium multimediales Lernenurocranium presents relatively few problems of interpretation and, in its broad outlines, this structure conforms to a pattern that is readily recognizable in the skull of higher vertebrates, consisting essentially of the sense capsules, parachordals and trabeculae (Fig. 7.1). In its simplest form, 作者: 浪蕩子 時間: 2025-3-25 16:11
Kompendium multimediales Lernenits peculiar characteristics which have impeded direct comparisons with the distribution of the cells and fibres in the spinal cord of higher vertebrates. The unique ribbon-like shape of the cord (said to be shared only by .) is almost certainly a secondary acquisition, since a more usual cylindrica作者: 知識分子 時間: 2025-3-25 22:41
Kompendium multimediales Lerneno, if not completely identical with those of their environment (Robertson, 1954). Thus, like the marine invertebrates and protochordates they are described as isosmotic and osmotic conformers. While they are in freshwater, lampreys on the other hand must be able to sustain their body fluids at conce作者: 修飾語 時間: 2025-3-26 00:37
Designentscheidungen: Das DO-ID-Modelld from the neural tissue of the floor of the diencephalon, and the adenohypophysis, an epithelial component originating from the epithelium of the embryonic mouth cavity. The cyclostomes diverge from the typical vertebrate pattern in that the adenohypophysial tissue develops from a naso-hypophysial 作者: 帽子 時間: 2025-3-26 06:17
Designentscheidungen: Das DO-ID-Modellthe gnathostomes only in that the thyroid tissue develops along almost the entire length of the pharynx rather than from a relatively short anterior region. In the earliest myxinoid embryos that have been examined, the thyroid appears to have arisen through the closing off of a ventral pharyngeal gr作者: Trabeculoplasty 時間: 2025-3-26 09:20 作者: 使虛弱 時間: 2025-3-26 12:59 作者: 忘恩負(fù)義的人 時間: 2025-3-26 17:22
Assoziierte Erkrankungen bei Typ-1-Diabetes,tic system has a corresponding twin or sister group and that both are derived from a common ancestor (Fig. 14.la). In this dichotomy, one of the sister groups retains to a greater extent the characters of the ancestral group (m.) and is referred to as plesiomorphic (or in L?vtrup’s terminology, ples作者: FAR 時間: 2025-3-26 22:44 作者: 粘 時間: 2025-3-27 04:06
Osmotic and ionic regulation,ntrations far above those of the environment (hyperosmotic regulation), whereas in their marine phase they maintain internal concentrations little more than a third of those of the sea water (hyposmotic regulation).作者: 公豬 時間: 2025-3-27 08:00 作者: 完全 時間: 2025-3-27 11:24 作者: 冒煙 時間: 2025-3-27 14:10
Designentscheidungen: Das DO-ID-Modellifferent routes, both vertebrate groups have attained the same association of nervous and glandular tissue that has made possible the integration of endocrine functions and the adaptation of hormonally controlled physiological processes to changes in the external environment.作者: gregarious 時間: 2025-3-27 19:37 作者: Intend 時間: 2025-3-27 22:17 作者: 我不重要 時間: 2025-3-28 03:25
Ecology and behaviour, the upper temperature limit for this species is between 10–13°C. When hauled to the surface in a trap from deep water, the animals are stressed by the rapid change in salinity and exude large quantities of mucus.作者: 脖子 時間: 2025-3-28 07:31 作者: Gastric 時間: 2025-3-28 11:29
The peripheral endocrine tissues, thyroid follicles (Fernholm, 1969). In lampreys, the definitive thyroid tissue does not appear until metamorphosis, when it develops from certain epithelial elements that appear to survive the otherwise complete breakdown of the larval endostyle.作者: intention 時間: 2025-3-28 17:44 作者: 不可磨滅 時間: 2025-3-28 19:15
Designentscheidungen: Das DO-ID-Modellhroughout their reproductive life. At least within the genus ., ovulation may be restricted to a definite breeding season, but in ., females containing mature eggs have been found throughout the year, although the interval between successive ovulations is not known.作者: Constituent 時間: 2025-3-29 02:10
Reproduction and development,hroughout their reproductive life. At least within the genus ., ovulation may be restricted to a definite breeding season, but in ., females containing mature eggs have been found throughout the year, although the interval between successive ovulations is not known.作者: exceed 時間: 2025-3-29 03:51
Distribution, variety and life cycles,ision since little is known of their oceanic feeding ranges, but in the Northern Hemisphere lampreys certainly occur off the coasts of Northern Scandinavia, Siberia and Alaska, while in the Southern Hemisphere, . is known to feed in Antarctic waters (Section 12.4.3).作者: 無可非議 時間: 2025-3-29 08:40
Respiration and feeding, the edge of the basal plate the teeth are everted, and once the jaws come into contact with the food they are then rapidly retracted, snapping the teeth together so biting or tearing off pieces which are transferred to the mouth.作者: Acclaim 時間: 2025-3-29 12:51
The heart and circulatory system, median dorsal aorta, which is continued forwards between the lateral vessels. The homologies of these vessels are by no means certain, but Holmgren (1946) considers that in its embryonic development, the dorsal aorta of . is closer to the gnathostome pattern than that of the lamprey.作者: Glucocorticoids 時間: 2025-3-29 19:20
The skeleton and the muscular system,lfactory capsule is connected to the membranes covering the brain only by fibrous tissue. In the course of metamorphosis, the trabeculae extend to form lateral cranial walls and the auditory capsules are united by a cartilaginous bridge (tectum synoticum). The anterior part of the hypophysial fenest作者: rheumatism 時間: 2025-3-29 20:09 作者: Inveterate 時間: 2025-3-30 02:46
Comparative biochemistry, immunology and cytogenetics,ve more detailed information on biosynthetic pathways and enzyme systems. An example is the erratic distribution of creatine even within animals belonging to the same taxonomic group (Watts and Watts, 1974). This nitrogenous compound has been found in the tissues of cephalochordates, myxinoids and l作者: 敘述 時間: 2025-3-30 07:52 作者: forbid 時間: 2025-3-30 09:29
Zielspezifizierung: Lehrzielbestimmungision since little is known of their oceanic feeding ranges, but in the Northern Hemisphere lampreys certainly occur off the coasts of Northern Scandinavia, Siberia and Alaska, while in the Southern Hemisphere, . is known to feed in Antarctic waters (Section 12.4.3).
