Results 41 to 50 of about 117 (99)

ErythroCite: a database on red blood cell size of fishes

open access: yesScientific Data
Size is a fundamental trait in biology, and cell size plays a key role in cellular functions, influencing physiological adaptations and evolutionary processes in living organisms. For decades, scientists have been fascinated by the considerable variation
Félix P. Leiva   +9 more
doaj   +1 more source

Are Melanocortin Receptors Present in Extant Protochordates?

open access: yesBiomolecules
Functional melanocortin receptor (MCR) genes have been identified in the genomes of early chordates, e.g., the cyclostomata. Whether they appear in the most ancient chordates such as cephalochordate and urochordata, however, remains unclear due to ...
Ren-Lei Ji   +4 more
doaj   +1 more source

Toʻgarak og'izlilar (Cyclostomata) sinfi

open access: yes, 2023
Og'iz teshigi yopishqoq disk shaklida boʻlib, halqasimon tog'ay bilan ta'minlangan. Tili yirik, shoxsimon tishlar bilan qoplangan. Jabralari skeleti panjarasimon yoki savatsimon, skeleti tog'ay va biriktiruvchi toʻqimadan iborat. Burun teshigi bitta.Toʻgarak og'izlilarning tuzilishi minoga misolida koʻrib chiqiladi 
openaire   +1 more source

On the Relation of the Escharoid Forms of Oolitic Polyzoa to the Cheilostomata and Cyclostomata [PDF]

open access: yesGeological Magazine, 1881
The Oolitic Polyzoa have been very little studied in this country. They are badly represented in our museums, and no systematic account of them has been given by any English writer. Their remains, however, are both abundant and often well-preserved in the Pea-grit beds of the Inferior Oolite near Cheltenham, and in the Forest-marble beds near Bath ...
openaire   +1 more source

Calcitonin-like Substance in Plasma of the Hagfish, Eptatretus burgeri (Cyclostomata)

open access: yesZoological Science, 1995
Cyclostomes have been regarded as having no ultimobranchial gland. However, cells producing immunoreactive calcitonin (CT) were recently found in cyclostome brains. In the present study, we examined using biochemical and biological methods whether there is a CT-like substance in the plasma of the hagfish, Eptatretus burgeri.
openaire   +2 more sources

Reptomultisparsa Bryozoa Cyclostomata Request For The Designation Of A Type Species

open access: yes, 1984
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

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