The most likely scenario for the emergence of eukaryotes is that they arose from a symbiosis in which the host was an archaeal cell and the symbiont was a bacterium. According to this theory, the bacterial symbiont subsequently gave rise to the mitochondria -- the intracellular organelles that are responsible for energy production in eukaryotic cells. One hypothesis proposes that the archaeal host was dependent on hydrogen for its metabolism, and that the precursor of the mitochondria produced it. This "hydrogen hypothesis" posits that the two partner cells presumably lived in an anoxic environment that was rich in hydrogen, and if they were separated from the hydrogen source they would have become more dependent on one another for survival potentially leading to an endosymbiotic event
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in title, tags, annotations or urlBest Android App For Long Time Earning-LasTedz Pro Money Making Android App - Android Apps And Games APK Free Download - 0 views
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George Dvorsky: The 12 cognitive biases that prevent you from being rational - 1 views
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"The human brain is capable of 1016 processes per second, which makes it far more powerful than any computer currently in existence. But that doesn't mean our brains don't have major limitations. The lowly calculator can do math thousands of times better than we can, and our memories are often less than useless - plus, we're subject to cognitive biases, those annoying glitches in our thinking that cause us to make questionable decisions and reach erroneous conclusions. Here are a dozen of the most common and pernicious cognitive biases that you need to know about"
A single sand grain harbors up to 100,000 microorganisms from thousands of species - 0 views
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Just imagine, you are sitting on a sunny beach, contentedly letting the warm sand trickle through your fingers. Millions of sand grains. What you probably can't imagine: at the same time, billions upon billions of bacteria are also trickling through your fingers. Between 10,000 and 100,000 microorganisms live on each single grain of sand, as revealed in a new study. This means that an individual grain of sand can have twice as many residents as, say, the city of Fairbanks, Alaska!
IJAAR-Vol-12-No-3-p-46-51.pdf - 0 views
Evolution: Revelatory relationship - 0 views
Betelgeuse is acting strange, and astronomers are buzzing - 0 views
Overview of the Ceramic Fuel Cells and How the New Discovery could Revolutionize it? ~ Multi Lab - 0 views
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