Sentences with phrase «photosynthetic life»
"Photosynthetic life" refers to living organisms, such as plants and certain types of bacteria, that are able to convert sunlight into energy through a process called photosynthesis. They use this energy to produce their own food and oxygen. Full definition
But those things are present in small amounts on Mars, and nobody is proposing that there's photosynthetic life on Mars.
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In Earth's youth, photosynthetic life forms thrived for a billion years without producing so much as a whiff of oxygen.
But the signals are also detectable only if the atmosphere is well oxygenated, and the only way scientists know how to make an oxygenated atmosphere is with photosynthetic life.
To determine if the so - called vent glow can sustain photosynthetic life, Cindy Van Dover, a marine biologist at the College of William and Mary in Williamsburg, Virginia, formed a research team that included Thomas Beatty, a microbiologist at the University of British Columbia in Vancouver, Canada, Robert Blankenship, a biochemist at Arizona State University in Tempe, and others.
For example, electricity and replacement bulb costs are consumer concerns that are driving demand for a more efficient way to support photosynthetic life, and LED lighting systems have become an unstoppable trend.
As most stars do not have the same distribution of light in color wavelengths as our Sun, however, some researchers hypothesize that photosynthetic life on extrasolar planets will not necessarily have the same colors as on Earth.
That is, oxygen tends to fall out of the air as rust and other mineral oxides rather than linger as a gas, so when it exists in abundance, something — photosynthetic life, in Earth's case — must be constantly replenishing it.
Instead, as suggested by the trickle - up theory of salmon restoration, the plankton tends to get eaten by tiny animals, which are then eaten by larger animals until, ultimately, all or most of the CO2 sucked up by the tiny plants during their photosynthetic life spans finds its way back to the atmosphere in relatively short order.
The carbon contained in the zircon has a characteristic signature — a specific ratio of carbon - 12 to carbon - 13 — that indicates the presence of photosynthetic life.
Dr. Worden says her collaborators are interested in understanding the origins of photosynthetic life, in part because it played a crucial role in allowing other life forms, including humans, to exist.
Photosynthetic life might support «crack» habitats in thin ice, if daily tides force water into the cracks formed by gravitational flexing from Jupiter (more).
The timing of the glaciation also seems to coincide with the evolution of photosynthetic life, which would have drastically reduced greenhouse gases through the release of oxygen.