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Ciencias Naturais (155)
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Hipervinculo Ciencias Naturales
Los gatos no surgieron del aire, y tuvo que correr mucha agua bajo el puente antes de que pudiéramos domesticarlos. Aunque parezca broma, fue a partir de la desaparición de los dinosaurios que los mam ...
Una infografía interactiva que 'refleja la evolución general de los navegadores, incluyendo la aparición de Chrome en el mercado. Se presentan las tecnologías más importantes a lo largo de los años y ...
Video Biología
"The Hardy-Weinberg Law is an equation for calculating the frequencies of different alleles and genotypes in a population in genetic equilibrium and expressed by the formula p + q = 1 where p is the f ...
Video Biología
"Speciation is the formation of a new species. A species is defined as a group of organisms that can interbreed successfully with each other. In allopatric speciation, two populations can get physical ...
Hipervinculo Biología
"Genetic flow, also called gene migration, is the transfer of genes between different populations through migration. Immigration is when new organisms join a population, changing allele frequencies. E ...
Hipervinculo Biología
"Genetic drift results from random changes the genes and allele frequency of a group of organisms. Genetic drift is usually found in small populations because smaller random events have a bigger effec ...
"The evolution of populations is defined as the changes populations undergo when organisms change over time as predicted by Darwin's Theory of Evolution. Over time, organisms which are most fit for th ...
"Reproductive isolation is a mechanism that keeps species from mating with others. Prezygotic isolation prevents the fertilization of eggs while postzygotic isolation prevents the formation of fertile ...
Video Biología
"Divergent evolution occurs when related species develop unique traits due to different environments or selective pressures. A classic example of divergent evolution is the Galapagos finch which Darwi ...
Hipervinculo Biología
"Darwin's Theory of Evolution states that groups of organisms will undergo genetic changes over time due to the process of natural selection. Darwin's theory says that organisms which are most fit for ...
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