Results 91 to 100 of about 443,007 (295)
Comportamiento en el desarrollo de todos los descendientes de una pareja de Bufo arenarum
La muestra observada consistió en 1443 renacuajos nacidos el 24 de septiembre de 1962 de una pareja de sapos. El 21,4 % de la población total se encontraba inhibido en su desarrollo.
N. Guiñazú
doaj
Generation of Competences Based on the Management of Scientific Knowledge
Currently, viable alternatives are needed to improve the learning process in students and can cope with the demands of society. Generate significant experiences based on research projects of real problems, will encourage students to develop skills that ...
José Antonio Martínez Villalba +1 more
doaj +1 more source
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri +6 more
wiley +1 more source
Clinical Evolution of New Delhi Metallo-β-Lactamase (NDM) optimizes resistance under Zn(II) Deprivation [PDF]
Carbapenem-resistant Enterobacteriaceae (CRE) are rapidly spreading and taking a staggering toll on all health care systems, largely due to the dissemination of genes coding for potent carbapenemases.
Bahr, Guillermo +5 more
core +1 more source
Sólo algunos aspectos del problema se tratan desde el punto de vista reflexológico. La definición de la conducta como un fenómeno biológico general, dentro del cuadro de las expresiones vitales, debe basarse simultáneamente en los criterios y aportes de
Konstantin Gavrilov
doaj
El darwinismo y la biología evolucionista
Este texto muestra la teoría evolucionista de Charles Darwin, la cual propuso en la obra "El origen de las especies por medio de la selección natural, o la preservación de las razas favorecidas en la lucha por la vida" el 24 de noviembre del año 1859 ...
Carlos M Suriel
doaj +1 more source
Freshwater environments are intertwined with human activities and the consequence has been environmental degradation and biodiversity loss. Fish provide key ecological and economic benefits, and fish abundance and diversity can be affected by human activities resulting in functional diversity (FD) changes that might scale up to ecosystem impacts ...
Romullo Guimarães de Sá Ferreira Lima +3 more
wiley +1 more source
The early evolutionary history of neo-sex chromosomes in Neotropical grasshoppers, Boliviacris noroestensis (Orthoptera: Acrididae: Melanoplinae) [PDF]
Neo-sex chromosomes are an important component of chromosome variation in Orthoptera, particularly South American Melanoplinae species, which have proven to be outstanding experimental model system to study the mechanism of sex chromosome evolution in ...
Castillo, Elio Rodrigo Daniel +2 more
core +1 more source

