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Hace 4 días · The study of abiogenesis aims to determine how pre-life chemical reactions gave rise to life under conditions strikingly different from those on Earth today. It primarily uses tools from biology and chemistry , with more recent approaches attempting a synthesis of many sciences.
Hace 4 días · They constitute a major group of life forms alongside the two groups of prokaryotes: the Bacteria and the Archaea. Eukaryotes represent a small minority of the number of organisms, but given their generally much larger size, their collective global biomass is much larger than that of prokaryotes.
Hace 1 día · By using the fossil record to date the separation of some species, the researchers employed a genetic equivalent of the equation used to calculate speed in physics to estimate when LUCA existed ...
Hace 3 días · Family tree showing the extant hominoids: humans (genus Homo), chimpanzees and bonobos (genus Pan), gorillas (genus Gorilla), orangutans (genus Pongo), and gibbons (four genera of the family Hylobatidae: Hylobates, Hoolock, Nomascus, and Symphalangus). All except gibbons are hominids.
Hace 5 días · The Tree of Life is typically divided into three main domains: Bacteria, Archaea, and Eukarya. Bacteria: These are single-celled organisms that are found in almost every environment on Earth. They are incredibly diverse and play essential roles in ecosystems, from decomposing organic matter to fixing nitrogen.
Hace 3 días · The data and conclusions of phylogeny show clearly that the tree of life is the product of a historical process of evolution and that degrees of resemblance within and between groups correspond to degrees of relationship by descent from common ancestors.
Hace 3 días · The Tree of Life abounds with examples of distantly related organisms sharing convergent life history strategies, despite divergent body size and lifestyle, and vice versa. Evolutionary ecologists seek to understand, across broad taxonomic groups, how and why diverse life history strategies, such as those exemplified here, are distributed ...
