Results 11 to 20 of about 730 (174)
Revista Sextante, 2019 La clasificación de los organismos vivos ha sido modificada numerosas veces, debido a que algunos grupos han sido difíciles de catalogar. Actualmente se reconocen siete reinos: Animalia, Plantea, Protozoa, Fungí, Archaea, Bacteria y Chromista.
Edy Luz Monterroza +3 more
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Osteology of the Feeding Apparatus of Chilean Flamingo Phoenicopterus chilensis (Aves: Phoenicopteridae). [PDF]
J Morphol1. The skull features a broad, dorsoventrally flattened frontal region articulating with an elongated upper jaw that is complemented by the mandible's downward bend along its proximal half. 2. The low mechanical advantage in the mandible is attributed to the reduced and shallow insertion areas of the adductor muscles, which are positioned close to the ...
Aldana Ardila O, Carlos CJ.
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A new Hyphessobrycon (Characiformes: Acestrorhamphidae) of the Hyphessobrycon agulha lineage of Hyphessobryconinae from the lower Aripuanã basin, Brazil, with comments about the lineage. [PDF]
J Fish BiolAbstract A new species of Hyphessobrycon is described from a tributary of Rio Jatuarana, lower Rio Aripuanã basin, Rio Madeira basin, Apuí, Amazonas. The new species is part of the Hyphessobrycon agulha lineage, with the typical midlateral narrow black stripe immediately followed dorsally by an iridescent stripe.
Faria TC +3 more
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Filogenias: conceptos y generalidades
Tequio, 2021 Any research in biology is an exercise of comparison that includes the study of evolution. The investigation of evolutionary patterns in either of its two approaches (micro or macroevolutionary) raises methodological challenges for any researcher interested in these topics.
Carlos Luis Leopardi-Verde +1 more
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Examining the structure of plant-lemur interactions in the face of imperfect knowledge. [PDF]
Conserv BiolAbstract Biotic interactions, such as plant–animal seed dispersal mutualisms, are essential for ecosystem function. Such interactions are threatened by the possible extinction of the animal partners. Using a data set that includes plant–lemur interactions across Madagascar, we studied the current state of knowledge of these interactions and their ...
Tonos J +6 more
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Botanical Sciences, 1995 Yucca L. (Agavaceae) se compone de 45 especies perennes distribuidas principalmente en los desiertos de México y los Estados Unidos. Aunque existen varios tratamientos taxonómicos de Yucca, la filogenia del género es aún poco conocida. No está claro qué
Karen H. Clary, Beryl B. Simpson
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Aproximaciones evolutivas en etnobotánica de plantas medicinales y bioprospección
Botanical Sciences, 2023 La evolución ha producido una gran biodiversidad que proporciona al ser humano bienes esenciales conocidos como opciones de valor de la biodiversidad.
Madeleyne Cupido +2 more
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Assesment and interpretation of negative forelimb allometry in the evolution of non-avian Theropoda
Frontiers in Zoology, 2019 Background The origin of birds is marked by a significant decrease in body size along with an increase in relative forelimb size. However, before the evolution of flight, both traits may have already been related: It has been proposed that an ...
José A. Palma Liberona +3 more
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Tropical and Subtropical Agroecosystems, 2022 Background: The Potyvirus Papaya ringspot virus type P (PRSV-p) causes the papaya (Carica papaya L.) ringspot disease, which causes damage to the plantations of this crop.
David Sósol-Reyes +4 more
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Biomédica: revista del Instituto Nacional de Salud, 2020 Introducción. El virus de Epstein-Barr (EBV) es un virus ubicuo y oncogénico, asociado con el desarrollo de enfermedades como la mononucleosis infecciosa, el linfoma de Burkitt, el carcinoma nasofaríngeo y otras neoplasias.
Daniela Arturo-Terranova +2 more
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