How To Use Ontogenetic In A Sentence
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The German zoologist, Ernst Haeckel, suggested, in this theory, the idea that ontogeny recapitulates phylogeny means that as over the short time span of nine months, a fetus, in the womb, goes through ontogenetic phases of development, it recapitulates the stages of development we see as we go up the evolutional scale -- phylogenetically, that took billions of years to develop.
Printing: A Book Review; The Terror Dream: Fear and Fantasy in Post-9/11 America by Susan Faludi
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The merging occurs near the apertural margin, indicating the specimen was fossilized shortly after ontogenetic merging.
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Ontogenetic thickening of branches reduces the degree of dorsal concavity.
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All available evidence suggests that ontogenetic ritualization, not imitative learning, is responsible for chimpanzees' acquisition of communicative gestures.
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And there's been more from the latest Journal of Vertebrate Paleontology, papers on the "rauisuchian" archosaur Batrachotomus kupferzellensis; the ontogeny of Stegosaurus; ontogenetic and taxonomic implications of pattern and transition of surficial bone texture of the centrosaurine frill; and Adeopapposaurus, a new prosauropod dinosaur from Argentina.
"Fill the night with stories. The legend grows."
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Like emulation learning, ontogenetic ritualization does not require individuals to analyze the behavior of others in terms of ends and means in the same way as does imitative learning.
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Ontogenetic depth partitioning by juvenile freshwater sawfish Pristis microdon: Pristidae in a riverine environment
Breaking News: Ontogenetic Depth 2.0! - The Panda's Thumb
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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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Indeed, on this basis it is possible to reject the implicit axiom of the lepidomorial theory, that all change occurs through ontogenetic concrescence, as well as the principle that ontogenetic concrescence is possible.
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Plant ontogenetic developmental processes and environmental conditions affect the size of this fraction.
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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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Unfortunately, there is often little ontogenetic information available about the size of reticulations, which may lead to complications when the small and large mesh designations are applied to juveniles.
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As already understood by Delbruck (1971), Aristotle's concept of the eidos, in the context of ontogenetic development, is in some respects remarkably similar to the modern concept of the genetic program.
Against Darwinism
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In mammals and most birds, individuals emerge into the world after a complex ontogenetic history in which behavioral differentiation played as important a role as tissue differentiation.
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Our review of data and theory, along with neuroscientific evidence, imply that numerical concepts have an ontogenetic origin and a neural basis that are independent of language.
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Thus the notochord, the brain, the eyes, the heart, appear earlier in the ontogenetic than in the phylogenetic series, while, on the other hand, the septum of the auricles appears in the development of the higher Vertebrates before the ventricular septum, which is undoubtedly a reversal of the phylogenetic order.
Form and Function A Contribution to the History of Animal Morphology
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Phylogenetic patterns of concrescence and differentiation are similarly achieved through ontogenetic developmental differentiation, or a lack thereof.
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Ontogenetic studies of the bracteoles in Chenopodiaceae could contribute to resolution of a robust phylogeny for the family.
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In mammals and most birds, individuals emerge into the world after a complex ontogenetic history in which behavioral differentiation played as important a role as tissue differentiation.
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Indeed, at an even earlier ontogenetic stage the vertebrae of the youngest individuals must have lacked any pneumatic features.
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Evolution of minerals and living organisms is governed by common ontogenetic laws.
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However, it has been demonstrated that the rate of ontogenetic loss of axial nodes relative to size was higher in N. geniculatus.
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The specimen is inferred to represent a five-year-old individual and to be at a young adult ontogenetic stage, based on a combination of histological features including narrower outermost zones, dense haversian bone, extensive and multiple endosteal bone depositional events and absence of an external fundamental system. d, Close up of the gastroliths scale bar, 2 cm.
The Panda's Thumb: Transitional Fossils Archives
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I conceived the embryonic form, in which the whole structure consists of only two layers of cells, and is known as the gastrula, to be the ontogenetic recapitulation, maintained by tenacious heredity, of a primitive common progenitor of all the Metazoa, the Gastraea.
Evolution in Modern Thought
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Regarding the marked size decrease of maxillary to premaxillary teeth, it seems likely that relative size of the teeth is allometrically and ontogenetically controlled.
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Generally, soleniscid gastropods have smooth, orthostrophic early ontogenetic whorls and a tightly coiled initial whorl.
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However, the two theories do clash, and this stems from the implicit assumption in the lepidomorial theory that ontogenetic and phylogenetic patterns equate; i.e., phylogenetic concrescence results from ontogenetic concrescence.
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ontogenetic development
