Sentences with phrase «species of this organism»

The ocean probably harbors millions of species of organisms, but right now only 230,000 have names.

«This work in lower species of organisms does not have an impact on the understanding of the role of sirtuins in human health and disease.»

After all, scientists have described and named nearly 2 million species of organisms.

I think there may be a problem with these statistics which imply there are 100 species of this organism, when it is the only species in its phylum.

Scientists are only beginning to do the research on how individual species of organisms might respond to increasing levels of ocean acidity as atmospheric levels of CO2 continue to rise.

Not exact matches

Evolution — including what Mr Ham would call «micro-evolution» resulting in variations within a species (like the degrees of melanin concentration in the human species) takes longer than a couple of thousand years in a complex organism.

Technophobe,: Christians, Muslims and Jews do believe in micro-evolution (the evolution inside species) but none of these religions believe in evolutionist macro evolution, the evolution of organisms changing species (ie, fish turning into reptiles, then turning to humans)

You can argue that the original organism had better eyesight than others of his species and therefore the change increased his ability to survive, but you ignore that the change had to occur in the first place, and if there was a change in the first animal the interconnectedness of the related bodily functions makes it impossible for the chance change — which by the way required the loss of genetic material — to have happened regardless of the amount of time you had.

The fossil record which shows millions of years of stable species, then an explosion of necessarily mutations, all occurring at the precise necessary time required for complex organisms to develop, and ALL escaping fossilization «the sudden appearance of most species in the geologic record and the lack of evidence of substantial gradual change in most species — from their initial appearance until their extinction — has long been noted, including by Charles Darwin who appealed to the imperfection of the record as the favored explanation» — Wikipedia

If you look at the curent state of living organisms there is little question that the species are devolving rather than evolving.

Where it gets a little complex, however, is where you have two organisms that look very different, but are of the same species, or two different species that look very similar.

More precisely, the duration of phyletic or ontogenetic process is not the evolutionary (maturational) history of a species (organism); the former is more accurately the sum of its ontogenies.

The evolutionary development of the eye is observable even today becuase its various stages are still there in extant species with each stage fulfilling the organism's needs in their respective environmental niches.

Definition of BEHAVIOR 1a: the manner of conducting oneself b: anything that an organism does involving action and response to sti.mulation c: the response of an individual, group, or species to its environment Glad that we know people are not born gay.

Darwin, on the other hand, tended to look solely at the external phenomenon of the organism's response to conditions in the environment and to ascribe to such response the initiation of change or variation in the species.

And every organism is oriented by its own drives to move beyond its immediate environment toward the future of itself and its species.

Another reason we see that organisms are discrete in terms of their change is that they form discrete units that we call species.

Other living organisms indicating the Earth is far more than a few thousands of years old include Posidonia oceanica, a species of seagrass found in the Mediterranean Sea.

Highly evolved organisms of a social species who have outdone their already remarkably intelligent primate relatives in intelligence and complexity of social structure.

Specimens of that species may be up to 100,000 years of age, e.g., see the 2012 article «Portuguese scientists discover world's oldest living organism» at theportugalnews.com/news/view/1152-20 or see the February 2012 paper, «Implications of Extreme Life Span in Clonal Organisms: Millenary Clones in Meadows of the Threatened Seagrass Posidonia oceanica» on which the news article was based, which is available online at the PLOS ONE website at plosone.org/article/info:doi/10.1371/journal.pone.0030454.

Each evolutionary event is conditioned by the whole preceding history of the species, by the environment in which it occurs, and possibly, in higher organisms with developed nervous systems, by the behavioral reactions of these organisms.

The continuing life of each species depends upon the preservation of a delicate balance between the organism and the environment which supports it.

Of course, most mutations make organisms less well adapted to their environments, explaining the extinction of so many specieOf course, most mutations make organisms less well adapted to their environments, explaining the extinction of so many specieof so many species.

Charles Darwin's Origin of Species claimed that organisms arose by random variation and natural selection, which must have been a slow business.

with each new change in any strain of virus or bacteria that is that organism adapting to its» enviroment, over time that whole species changes as the ones adapted survive and pass on their traits to the next generation.

Evolutionary processes give rise to diversity at every level of biological organisation, including species, individual organisms and molecules such as DNA and proteins.

For practical purposes, we will use a common, working definition, even though it only strictly applies to se - xually reproducing organisms, and that is: A species is comprised of individuals capable of interbreeding to produce fer - tile offspring.

Indeed, it is often easy to tell that two organisms are of different species just by looking at them.

Where it gets a little complex, however, is where you have two organisms that look very similar, but are of different species, or two different species that look very similar.

Rivet popping on spaceship Earth consists of doing things that cause the extermination of populations of nonhuman organisms and even whole species.

The fossil record includes the Stromatolites, colonies of prokaryotic bacteria, that range in age going back to about 3 billion years, the Ediacara fossils from South Australia, widely regarded as among the earliest multi-celled organisms, the Cambrian species of the Burgess shale in Canada (circa — 450 million years ago) the giant scorpions of the Silurian Period, the giant, wingless insects of the Devonian period, the insects, amphibians, reptiles, fishes, clams, crustaceans of the Carboniferous Period, the many precursors to the dinosaurs, the 700 odd known species of dinosaurs themselves, the subsequent dominant mammals, including the saber tooth tiger, the mammoths and hairy rhinoceros of North America and Asia, the fossils of early man in Africa and the Neanderthals of Europe.

In this regard, we described two types of biologically - based teleologies: (i) an external teleology, where there is a deliberate and conscious setting of goals, those that are generally found among human beings and possibly in higher animals; and (ii) an internal teleology, where there is no self - directed or conscious goal - seeking on the part of living organisms, such as in the natural selection of favorable traits among biologically adaptive species.

Thus a full - blown temporal hierarchy is postulated, from the rhythms of human consciousness, through those of countless species of living organisms, to those of matter — longer durations extending over briefer durations, these extending over briefer durations still.

The brief showed that the offspring of human beings is human at every stage of its development; that the offspring undergoes no change of species; that it is a separate organism, with a genetic definition of its own, certainly not part of the body of the mother.

Thus, the natural selection of adaptive species in biological evolution may be looked upon as an internalized teleology, since there is no «conscious» (or self - directed) attempt to choose «desirable traits» on the part of mutating organisms.

Each genetic mutation produces only a very small change in the biological features of the organism, but such small changes accumulate over immense periods of time and lead to the evolution of new species from old.

He develops his argument against atypically atheistic Darwinism around the fact of evolutionary convergence: «The central point is that because organisms arrive repeatedly at the same biological solution... this provides not only a degree of predictability, but more intriguingly points to a deeper structure to life...» His viewpoint is quite clear: «Metric - sized animals that are the end - result of many billions of years of prior stellar and biological evolution may be the only way to allow at least one species to begin its encounter with God.

The provision of structures providing food and shelter, and the lack of pesticide use, attract new or re-colonizing species to the organic area (both permanent and migratory), including wild flora and fauna (e.g. birds) and organisms beneficial to the organic system such as pollinators and pest predators.

Most species of the mentioned animal groups in Table 4 are beneficial organisms and enforce ecological services.

For breastfed infants, there is no evidence of an increased risk of methemoglobinemia from maternal ingestion of water with nitrate nitrogen concentrations as high as 100 ppm, because these mothers do not produce milk with high nitrate concentrations.16 Furthermore, the predominant organism in the gastrointestinal tract (Lactobacillus species) of the breastfed infant does not reduce nitrate to nitrite (see following section).14

The beam and chains disturb or kill many bottom - dwelling organisms, the nets catch unwanted species, and all the tugging requires a lot of diesel.

Treating each tale as a species that mutates over time, they've borrowed techniques from phylogenetics (the study of evolutionary relationships between living organisms) to map stories onto the tree of Indo - European languages.

Such stretches of DNA point to genetic regions that are critical to a species» survival and development, as these regions are the product of «selective sweeps» in which all or most organisms in a geographic location come to depend on a certain genetic trait.

«Identifying which of these candidate genes actually causes variation in responses to cold snaps will give us the potential to understand whether evolution to climate change can occur in both wild and domesticated animals, allowing us to better predict which species or breeds will be «winners» and «losers» and to better mitigate the effects of anthropogenic climate change on a wide range of organisms from beneficial pollinators to invasive pests,» said Theodore Morgan an associate professor of evolutionary genetics in the Division of Biology at Kansas State University and senior author of the study.

Decades of field studies have shown that organisms are shaped by their environment, and by the community of other species that make up their ecosystem.

My guess is that a poorly encapsulated, communal gloop of organisms lost out to closely guarded species for the same reason that the Linux community didn't come up with the iPhone: Encapsulation serves a purpose.

Once organisms became encapsulated, they isolated themselves into distinct species, trading genes only with others of their kind.

About 5,300 previously unknown organisms have already been identified, and every new sighting is logged into the census's freely accessible Ocean Biogeographic Information System (www.iobis.org), which boasts more than 13 million observations of 80,000 species.

The giardia organism inhabits the digestinal tract of a wide variety of domestic and wild animal species as well as humans.

Fertilisation, also spelt fertilization (also known as conception, fecundation and syngamy), is fusion of gametes to form a new organism of the same species.