Results 41 to 50 of about 86,377 (263)
Biology of Trypanosoma cruzi: An update Biología del Trypanosoma cruzi: Actualización
Infectio, 2012 Chagas disease, an illness caused by the protozoan Trypanosoma cruzi, is clinically and epidemiologically important in Latin America, and particularly in Brazil.
André Vianna Martins +9 more
doaj
Dental crown morphological variation and heterodonty in carcharhiniform sharks
The Anatomical Record, EarlyView.Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley +1 more source
Biologia Funcional vs. Biologia Evolutiva
, 2001 RESUMEN: La distinción propuesta por Ernst Mayr y François Jacob entre biología funcional y biología evolutiva es una clave fundamental para un tratamiento claro y concluyente de dos problemas que, recurrentemente, se colocan en el ámbito de la Filosofía de la Biología: aquel que atañe al posible carácter teleológico de las explicaciones biológicas y ...
openaire +2 more sources
The Anatomical Record, EarlyView.Abstract The equine ovary exhibits unique structural and developmental features that distinguish it from those of other domestic species, including the presence of an ovulation fossa and an inversion of cortical and medullary layers. This study aimed to investigate the morphostructural development of the equine fetal ovary, with particular emphasis on ...
Laura Ver Goltz +5 more
wiley +1 more source
Ciência e Agrotecnologia, 2005 O presente trabalho teve como objetivo avaliar a influência da adubação da cultura do sorgo Sorghum bicolor (L.) Moench, na biologia da broca da cana-de-açúcar Diatraea saccharalis (Fabr., 1794) (Lepidoptera: Pyralidae).
Sergio Antônio de Bortoli +3 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Sexual differentiation in the equine fetus involves coordinated morphogenetic processes that shape both the gonads and the genital ducts. Although the formation of testes and ovaries has been relatively well documented, the temporal dynamics and morphometric patterns of the mesonephric (Wolffian) and paramesonephric (Müllerian) ducts remain ...
Tais Harumi de Castro Sasahara +4 more
wiley +1 more source
Acta Scientiarum: Biological Sciences, 2008 Este trabalho teve como objetivo estudar a biologia alimentar e reprodutiva do peixe-cachorro, Oligosarcus jenynsii, na região do alto rio Uruguai. Foram capturados 246 exemplares, dos quais 127 eram fêmeas, 78 eram machos e 41 foram identificados como ...
Samara Hermes Silva +2 more
doaj +1 more source
Bibliothecae.it, 2020 The genetic code of the human species requires us to react aggressively to threatening situations. Culture, history – as magistra vitae –, philosophy, law and even religion have failed to quell aggressive instincts except through threats and punishments.
Alfredo Serrai
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Neuroanatomical research has progressed considerably in several vertebrate lineages, yet studies of reptilian brain morphology remain markedly underdeveloped. Here we provide the first description of macroscopic brain anatomy and its ontogeny in the viperid Bothrops moojeni, based on a sample of seven individuals.
Paula Araújo +2 more
wiley +1 more source
BIOLOGICAL RATIONALITY AND CLASSROOM IMPLICATIONS
Travessias, 2014 The subject proposed in this article appears as an interesting factor of discussion in courses of Biology teachers formation, in view of the doubleness of the biologist formation: bachelor and/or licentiate.
José Luís Schifino Ferraro
doaj