Results 81 to 90 of about 9,544 (216)

THE VARIABILITY OF ANATOMIC SIGNS OF SYRENIA DOLICHOSTYLOS KLOKOV PLANTS IN THE PROCESS OF ONTOMORPHOGENESIS

open access: yesМіжнародний науково-технічний журнал "Проблеми керування та інформатики"
The anatomical structure of the leaves of the plants S. dolichostylos of different age phases was studied. It was found that noticeable changes occur in the anatomical structure of the leaves, when plants move from one phase of development to another ...
Д.Д. Футорний   +1 more
doaj   +1 more source

Early evolution of the gular musculature and its innervation in ray‐finned fishes

open access: yesThe Anatomical Record, EarlyView.
Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo   +4 more
wiley   +1 more source

Elliptic Fourier analysis as a tool for the taxonomic identification of isolated theropod pedal phalanges

open access: yesThe Anatomical Record, EarlyView.
Abstract Studies of Upper Cretaceous deposits in North America have provided invaluable insights into the continental ecosystems of this time. Theropod (Saurischia, Dinosauria) pedal phalanges are commonplace in these deposits but can be difficult to identify at a finer taxonomic resolution.
Trystan M. Warnock‐Juteau   +2 more
wiley   +1 more source

The role of heat shock protein chaperones in human and murine salivary gland ontogenesis

open access: yesJournal of Biological Research
The chaperone system plays essential roles in health and disease and is likely critical during embryogenesis. Previous studies have focused on early stages, from the one-cell stage to the blastocyst, with no information available on the topographic ...
Charbel A. Basset   +10 more
doaj   +1 more source

ONTOGENETIC APPROACH IN NATURAL SCIENCES [PDF]

open access: yesМинералогия, 2016
The knowledge of ontogenesis (evolution of life) of the solid matter allows predictions of different scientific models. An ontogenetic approach is a heuristic direction of science, because it considers the change in mineral body in time of their origin ...
V.A. Popov
doaj  

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

open access: yesThe Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani   +3 more
wiley   +1 more source

Born this way: Does variation in perinatal limb bone morphology predict adult locomotor repertoire in primates?

open access: yesThe Anatomical Record, EarlyView.
Abstract Primates show a high degree of locomotor diversity that engenders similar variance in limb bone cross‐sectional geometry and bending strength: leaping primates have stronger hindlimb bones whereas suspensory species have stronger forelimb bones.
Angela M. Mossor   +7 more
wiley   +1 more source

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

open access: yesThe Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras   +3 more
wiley   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga   +4 more
wiley   +1 more source

Features of growth and generative development of Campsis radicans (L.) Seem. ex Bureau in the conditions of the Northern Black Sea region

open access: yesНаукові доповіді Національного університету біоресурсів і природокористування України
The need to control the spread of introduced species with high adaptive potential in new ecological conditions necessitates the study of their biological properties. The aim of the study was to establish the biological characteristics of Campsis radicans
O. Korolyova
doaj   +1 more source

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