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Hace 4 días · La integrante de la investigación, la bióloga chilena Natalia Ricote, conversó con País ADN y detalló el proceso que permitió hallar a este especial animal.
Hace 5 días · human evolution, the process by which human beings developed on Earth from now-extinct primates. Viewed zoologically, we humans are Homo sapiens, a culture -bearing upright-walking species that lives on the ground and very likely first evolved in Africa about 315,000 years ago.
Hace 5 días · A species ( pl.: species) is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. [1] . It is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity.
Hace 3 días · Biodiversity (or biological diversity) is the variety and variability of life on Earth. It can be measured on various levels. There is for example genetic variability, species diversity, ecosystem diversity and phylogenetic diversity. [1] . Diversity is not distributed evenly on Earth.
Hace 5 días · Poaceae, grass family of monocotyledonous flowering plants, a division of the order Poales. The Poaceae are the world’s single most important source of food. They rank among the top five families of flowering plants in terms of the number of species, but they are clearly the most abundant and.
Hace 5 días · Wasps are distinguished from the ants and bees of Apocrita by various behavioral and physical characteristics, particularly their possession of a slender, smooth body and legs with relatively few hairs. Wasps also generally are predatory or parasitic and have stingers with few barbs that can be removed easily from their victims.
Hace 5 días · natural selection, process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution. A brief treatment of natural selection follows. For full treatment, see evolution: The concept of natural selection.
