Loxochlamys having 13-15 prominent radial rounded-trigonal plicae that begin early in ontogeny and remain of moderate height throughout ontogeny. |
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Furthermore, foraminiferal growth is often strongly allometric, and in many foraminifers the shape of the chamber changes during ontogeny. |
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The most thoroughly studied system is the ontogeny of hemocyanin structure and function in Cancer magister, the Dungeness crab. |
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How can changes in an ancestral ontogeny be reconstructed, since the ancestors of most craniate radiations are extinct? |
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Some species live entirely in this restricted habitat, but most become ammoniacal late in ontogeny, as they approach semelparous reproduction. |
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So these small horns may be more relevant to the study of dinosaur ontogeny than phylogeny. |
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Moreover, three of them could constitute a morphological series, continuously related through ontogeny. |
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During turtle ontogeny the reduction of the trunk myomeres leads to sinking of the vertebrae and ribs into the dermis. |
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The auricles in early ontogeny are relatively large and distinctly trigonal, with their free margins meeting the hinge line at acute angles. |
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The ontogeny and dimorphic features of many early Middle Ordovician ostracode species are still poorly known. |
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In both cases, alterations of developmental timing produce parallels between ontogeny and phylogeny. |
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These models stress the dynamics during ontogeny of the cellular components of growth and morphogenesis. |
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There is however one problem, namely that much of the ontogeny and behavior of biological organisms is not intentional. |
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In most birds, diverticula of the abdominal air sacs pneumatize the posterior thoracic vertebrae and synsacrum later in ontogeny. |
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Heterometry should be applicable only to morphological features that are considered fixed in number through ontogeny. |
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Discuss in detail a good example of recapitulation, showing how the stages of ontogeny parallel those of phylogeny. |
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In the normal lymphoid ontogeny, genomic recombinations occur in a tightly regulated sequence and require an enzyme called recombinase. |
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Specialization on alternative food resources might drive evolutionary shifts in jaw ontogeny and morphology. |
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However, the examination of specific cases may still yield valuable insight into the relationship between phylogeny, ontogeny and ecology. |
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Progress in our understanding of the relationships between ontogeny and phylogeny forever seems to be bogged in nomenclatural disputes. |
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Recall that the central theme of monism is the so-called biogenetic law stating that ontogeny recapitulates phylogeny. |
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A more botanically minded perspective of branching patterns integrates plant morphology and ontogeny. |
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Selection may act to modify ontogeny and ultimately determine morphology and function. |
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Exceptions to the rule may provide insight into the biology of the animals' ontogeny and life cycle. |
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We have studied the growth history, or ontogeny, of both trilobites and discovered some interesting relationships. |
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The genal spine of the very smallest specimens is about as long as the remainder of the cheek, and remains distinct until late in meraspid ontogeny. |
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With respect to ontogeny, the question becomes: How does the dog's tail-wagging behaviour develop? |
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The 1997 Prize was awarded to Claude-Agnès Reynaud and Jean-Claude Weill in the field of the Immune System, its ontogeny and regulation. |
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Research experience in fish morphology and ontogeny, and in skeletal deformities. |
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We will aim at clarifying this debate by examining the early forms of mentalisation and of communication both in ontogeny and in phylogeny. |
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This hypothesis is the central issue discussed in the present review, along with the ontogeny of osmoregulatory mechanisms during the embryonic life. |
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Rapid growth of the inner and basal parts of the apertural margin during their late shell ontogeny caused twisting of the gerontic whorl both outwards and backwards. |
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The three known species of Loxochlamys share similar shape and micro-ornament, including a tendency to become commarginally lamellose late in ontogeny. |
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The unusual change in shell coiling from dextral to sinistral during their ontogeny represents a character which makes their recognition in the fossil record easy. |
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Considering the three patterns of ontogeny of postembryonic osmoregulation, it is clear that the studied species classed in pattern I are marine stenohaline osmoconformers. |
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Delineation of species has traditionally been based on morphological characteristics, especially macroconidium ontogeny, and species have been named based on host association. |
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His finding of parallels between ontogeny, paleontology, and morphology was rapidly adopted by biologists like Haeckel and used to support evolution. |
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However helpful this removal can be, there needs also to be a cohesive model of homologies that can draw upon the integration of morphology, ontogeny, and paleontology. |
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If ontogeny really did recapitulate phylogeny, then phylogenetic relationships might be determined directly by reference to ontogenetic sequences. |
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Heterochronic evolution has been defined as a morphological change inscribed within an ontogenetic trajectory that produces parallelism between ontogeny and phylogeny. |
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Can anyone get more obscure than biologists and paleontologists, who reflect for thirteen syllables on whether or not ontogeny recapitulates phylogeny? |
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With reference to seedling stages the statement that ontogeny recapitulates phylogeny must be made with great reserve. |
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Structure, ontogeny, organographic distribution, and taxonomic significance of trichomes and stomata in the Cucurbitaceae. |
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The primary focus of home visiting programs is to target risk factors early in ontogeny, preferably during pregnancy, a period of high fetal and maternal vulnerability. |
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Stimulation of scutellaris during ontogeny by high temperature merely reduces the markings concentricly. |
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Pre-meiotic bands and novel meiotic spindle ontogeny in quadrilobed sporocytes of leafy liverworts. |
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Morphology, anatomy and ontogeny of the fruits and seeds of Clusia lanceolata Cambess. |
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Developmental biologists, for example, are rethinking the degree to which ontogeny recapitulates phylogeny. |
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Chemistry, ontogeny, and role of pygidial gland secretions of the vinegaroon Mastigoproctus giganteus. |
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Anatomy of staminate flower ontogeny of the pecan as determined by scanning electron microscopy. |
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Stress-induced alterations in locus coeruleus gene expression during ontogeny. |
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Development of digestive enzymes in common dentex Dentex dentex during early ontogeny. |
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Localized cell death, occurring at precise moments during normal ontogeny, explains phenomena as varied as the fashioning of the digits or the involution of phylogenetic vestiges. |
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Chemistry, ontogeny, and the role of the pygidial gland secretions of the vinegaroon Masrigiprocuss giganteus. |
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Haeckel maintained that ontogeny recapitulates phylogeny, and this idea was incorporated by Lombroso into his parallelism between the criminal and the child. |
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The ontogeny of feeding behavior in four species of centrarchid fish. |
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These structures increase in density, covered surface, and distribution during ontogeny and should be related to chemoreception and mechanoreception. |
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According to a paleontologic adage, ontogeny recapitulates phylogeny. |
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From 1993 to 2002, she was at Bar Ilan University, as a Teaching Assistant and a Research Assistant where she was involved in the ontogeny of transient DRG of chick embryos. |
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During ontogeny the oral surface of the platform surrounding the carina gradually filled in progressively from the posterior tip towards the anterior part of the platform. |
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To date, the embryology and ontogeny of the harvestmen have received less attention than those of the other arachnids, but this is changing for the better. |
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This experimental research was set out to investigate in sunflower, the role of GA3 on the speed and percentage of germination as well as the ontogeny of the vascular tissue. |
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