Sentences with phrase «many simple organisms»

No there is a mountain of evidence for evolution: geographic distribution, tree of life, simpler organisms are older, inheritance, DNA, etc. and no evidence for creationism — unless you've seen a woman created from the rib of a man.

Just as a mountain climber can not jump to the top of the Matterhorn, a (relatively) simple organism like a bacterium can not even conceivably become a complex plant or animal except in very gradual stages.

But we see it insects and other simpler organisms.

In such cases of the simplest organisms, they may respond sympathetically to (or feel) their nearest equal neighbors in a community - like relationship.

If there is no God, then naturalism is all that remains, the evolution of man from simpler organisms over billions of years.

Microbial geneticists Paul Rainey and Michael Travisano of Oxford University wanted to examine diversification in simpler organisms within the confines of the lab.

In even simple organisms like bacteria, however, researchers have observed a distinct molecular traffic flow to reduce head - on collisions between enzymes engaged in different tasks.

New research presented at the European Planetary Science Congress at UCL aims to answer the final question, of whether entry and impact is survivable for simple organisms.

That might not sound like much but populations of many simple organisms can number in the trillions, with new generations appearing every hour or less.

The complexity of mammals led Kandel to try to find a simpler organism to use in his studies.

Scientists knew that fruit flies, cockroaches, and other simple organisms have sensory processors that resemble a cortex, but these were «always interpreted as a striking example of convergent evolution of unrelated structures,» says molecular biologist Raju Tomer, who led the study at the European Molecular Biology Laboratory in Germany.

They found simple organisms known as prokaryotes in every sample.

To trace the molecular basis of memory, Kandel was using the sea slug Aplysia, a neurologically simple organism that contains only perhaps 20,000 neurons, many of them quite large.

But while this study has proved that the technique works in a simple organism, it could also be applied to other bacterial species, yeast or even human cells to find useful information about how genes are controlled and how they can be manipulated.

«There is so much we can learn by studying simple organisms.»

A simple organism with only a sliver of RNA couldn't possibly build such a complicated container for itself.

Perhaps they do something different in these simpler organisms, and membrane remodeling evolved later.

Several previously reported genes from simpler organisms code for proteins that oscillate in abundance.

This means that its components and functions are similar in diverse species from simple organisms like fruit flies to mice and even humans.

A simpler organism is more likely to leave a simpler trace that can be confused with something that is not biological, like a squiggle or a crack in the rock, says Buckley.

Life on Earth likely emerged in the deep ocean, where simple organisms fed off toxic gas from volcanic vents.

Many such amino acids have been created by biologists and they have even been substituted into simple organisms such as fruit flies.

This observation applied not only to simple organisms such as yeast, but also to more complex organisms such as humans.

The idea that the simplest organism may not have come first upends the popular notion of an evolutionary march toward complexity.

The numbers were clear: The small, steady shower of cosmic rays would supply enough energy to power a simple organism on all of the planets he simulated except Earth, Atri reports this week in the Journal of the Royal Society Interface.

«The advantage to using a simple organism like C. elegans is that you can look at questions in great detail,» Bargmann says.

«What is surprising is that these simple organisms with a very small nervous system perform — or approximate — fairly complex, multistep, long - term planning strategies,» says Sharpee.

It's a ladder of progress with simple organisms at the bottom and humans at the top.

The cyber moth joins the esteemed ranks of simple organisms hitched to robots, including slime mold, a detached eel brain and the cockroach.

Some simple organisms like bacteria can survive without oxygen, but all higher organisms need oxygen and Earth's biology would probably be a poor sight, if the atmosphere did not contain the 21 percent oxygen, which is essential for the human brain to function, for example.

For instance, in simple organisms such as yeast, when genetic material becomes damaged, the affected DNA strands increase their motion, waving about inside the cell like a sail unfurled.

Iñaki Ruiz - Trillo, a biologist at the Institute for Biological Evolution in Barcelona, believes that in these simpler organisms, integrin genes may contribute to the formation of spore sacs.

It also offers an opportunity to study learning types in other very simple organisms, such as viruses or bacteria.

The findings reveal a level of movement planning rarely seen in such a simple organism.

Neuroscientists vying to find credible consciousness indicators in simpler organisms may be overlooking the most direct way to do so...

It may also raise questions as to the learning capacities of other extremely simple organisms such as viruses and bacteria.

Brains, even of relatively simple organisms like fruit flies, are teeming with a huge variety of nerve cells that can behave differently depending on their connections, task and even time of day.

How did simple organisms like yeast and worms evolve into ones as complex as birds and mammals?

Some of the largest known viruses infect simple organisms such as amoebas and simple marine algae.

Antibiotics and other modern medicines do not work on viruses because these radically simple organisms infiltrate cells and hijack their processes to serve their own purposes.

Winston covers all the bases, from Lamarck «s notions on the origins of simple organisms through to the intricacies of genetics, and he also touches on speciation, shrinking biodiversity, genetic drift, even the ethics of selecting «desirable» traits in your children.

One of the sharpest critics of Cuvier's theory of cataclysms was Jean - Baptiste Lamarck (1744 to 1829), who was convinced that all living things had originated from simple organisms, and were therefore related to each other.

Rao's team next tested how these variant forms of NHE9 would affect a relatively simple organism often used in genetic studies: yeast.

The cells might have descended from a simpler organism or acquired their complexity by snatching genes from other microbes.

«We have an under - appreciation for how sensory systems in simple organisms are used for fairly sophisticated adaptations.»

When they're acting in this team, they're not the simple organisms that I learned about 40 years ago.

In addition, we will study another simple organism — the fruit fly — to elucidate how the entire brain coordinates behavior in the face of an ever - changing environment.

When I was a student, I became interested in microbes because they were presented to me as these very interesting yet simple organisms, which scientists could isolate to understand how they worked.

«In those simple organisms, scientists teased out exactly what the repeat region was doing, and the same principles were at work in human cells.

Even engineering supposedly simple organisms could have major ecological and health effects.