Senescent Cells, Tumor Suppression, and Organismal Aging: Good Citizens, Bad Neighbors Cells from organisms with renewable tissues can permanently withdraw from the cell cycle in response to diverse stress, including dysfunctional telomeres, ...
When Charles Darwin published “On the Origin of Species” in 1859, there was a lack of evidence of “transitional” fossils—that appeared with structural features between two major groups of organisms, recognized as “missing links” in the “great chain of being.” Thereafter, the scientists...
aWhat the evolutionary view tends to overlook is the origin of the firm, or rather, the ways in which the underlying theory of the firm may or may not explain its origins. 什么演变看法倾向于俯视是企业的起源或者宁可,企业的部下的理论可能或不可能解释它的起源的方式。 [translate] ...
They call them genetic freaks. Men with muscles the size of my head, and heads the size of my torso (see Barry Bonds). Their arms are nearly 2 feet in circumference, and their body fat percentages are in the single digits. Surely a body structure like this must be genetic in origin…...
Intraspecific phylogeography, molecular dating, and fossils are incorporated to help identify the different cenocrons (set of taxa that share the same biogeographic history, which constitute identifiable subsets within a biota by their common biotic origin and evolutionary history) that became assembled ...
helping scientists paint a more correct evolutionary picture of the origin of the jaw.The fish fossils were discovered at two places in Chongqing and Guizhou, whose strata(岩层) date back to the Silurian Time that began around 440 million years ago.These fossils show that jawed fish were ...
Humans evolved (进化) from apes.This is what we learned in biology class.But what came before apes?Chinese scientists have discovered fossils that could enrich the evolutionary story of how humans evolved from fish. According to four articles published in the journal Nature in late September,Chine...
Evolution is the process by which the characteristics of a population change over time. It also gives rise to new species.
Many of the shared physical traits have an evolutionary basis, rising out of gradual adaptation over time. The pigment of a person’s skin is often directly linked to the average number of daylight hours common to the region or geographic area where the person’s ancestors lived. This is why...
What is an evolutionary psychologist? Evolutionary Psychology: Evolutionary psychology is a sub-field of psychology. It is rooted in the theory of natural selection formulated by Charles Darwin in his bookThe Origin of Species(1859). Answer and Explanation: ...