Sentences with phrase «by living organisms»

This spectacular effect is the production of emission of light by a living organism.

These diseases are caused by living organisms active within the brain itself.

A vitamin is an organic molecule required by a living organism in minute amounts for proper health.

DNA is the core component of chromosomes, and contains the genetic instructions used by all living organisms and some viruses.

It is a natural wonder of the world, and when you go there you can tell all your friends you have been and viewed this amazing structure made by living organisms.

A reminder — the «carbon sink» is, for the human time scale, done by living organisms.

Antimicrobial peptides, produced by all living organisms as part of their immune defenses, kill microbes in several different ways.

Other researchers, however, say that the fossil stromatolites were not formed by living organisms, but by physical and chemical processes around hydrothermal vents.

Trace fossils are the tracks and burrows left by living organisms, not physical remains such as bones or body parts.

Bioluminescence is the production and emission of light by a living organism as the result of a chemical reaction during which chemical energy is converted to light energy.

Pandoraviruses thus use the universal genetic code shared by all living organisms on the planet.

The oxygen that is today removed by living organisms, including humans, is replenished by plants.

«This work answers a 50 - year mystery that has surrounded how sulfur — an element essential for life on Earth — was used and recycled by living organisms,» he said.

The authors also hope this will give non-specialist readers a more secure grasp of the intricate and often surprising adaptations undergone by living organisms.

According to WHOI geochemist Dan Repeta, the answer may lie in the complex ways that bacteria break down dissolved organic matter, a cocktail of substances excreted into seawater by living organisms.

What about batteries powered by living organisms?

Ozone is made up of oxygen, but oxygen itself is generated by living organism on earth.

The carbon captured by living organisms in oceans is stored in the form of biomass and sediments from mangroves, salt marshes, sea grasses and potentially algae.»

This livid green soup has catastrophic effects when ingested by living organisms and as bad luck would have it, the capsules all land in just about the worst possible place.

In geologic studies it is quite common that the youngest surface of a sediment core is not dated by radiocarbon, either because the top is disturbed by living organisms or during the coring process.

The Gaia hypothesis proposes a fantastic means exists for keeping the earth stable enough for life, in part reliant on climate controls exerted by living organisms.

Curiosity has also scanned Mars» air for methane, a gas that here on Earth is predominantly produced by living organisms.

An expert in the somewhat exotic topic of biostratification — the layering of Earth's crust caused by living organisms — El - Naggar is a member of the Geological Society of London and publishes papers that circulate internationally.

And researchers found unusual microscopic carbonate globules, which they believed were formed by living organisms.

This biologist and his team instead searched for — and found — genetic residues left by living organisms.

That's one nitrogen atom plus one oxygen atom, possibly produced by breakdown of nitrate (one nitrogen plus three oxygens), which can be used by living organisms.

Bioluminescence is the production and emission of light by a living organism.

There is something intriguing on almost every page of this well - illustrated and usefully timed study of probably the oldest ecosystems on the planet and the largest structures made by living organisms.

The world's biggest structure built by living organisms is not Tokyo or New York.

To be called «biodegradable» a material needs to be broken down by living organisms in specific conditions into its constituent parts: carbon dioxide, water, inorganic compounds and biomass.

The term «organic» was originally confined to compounds produced by living organisms but now extended to include synthetic substances based on carbons and includes plastics.

A pheromone is any chemical produced by a living organism that transmits a message to other members of the same species.

Ultimately, a nascent fleet of next - generation observatories could even probe the world for so - called «biosignatures» — gases such as oxygen and methane that, here on Earth anyway, are mostly produced by living organisms.

This crystal growth pattern, known as an axial screw dislocation, is rare in terrestrial magnetites and is totally unknown in those produced by living organisms, says McSween.

«We're interested to learn how organisms mediate mineralization and commonly it is challenging to demonstrate that a mineral was produced by living organism,» said Templeton.

Astronomers» current strategy for finding life on another planet is to detect the chemical composition of that planet's atmosphere, on the look - out for chemical imbalances which could be caused by living organisms.

The scientific term is Bioluminescence — or the production and emission of light by a living organism.