Evolution: A Scientific American ReaderScientific American University of Chicago Press, 2008 M09 15 - 312 páginas From the Scopes “Monkey Trial” of 1925 to the court ruling against the Dover Area School Board’s proposed intelligent design curriculum in 2005, few scientific topics have engendered as much controversy—or grabbed as many headlines—as evolution. And since the debate shows no signs of abating, there is perhaps no better time to step back and ask: What is evolution? Defined as the gradual process by which something changes into a different and usually more complex and efficient form, evolution explains the formation of the universe, the nature of viruses, and the emergence of humans. A first-rate summary of the actual science of evolution, this Scientific American reader is a timely collection that gives readers an opportunity to consider evolution’s impact in various settings. |
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... carbon, oxygen, iron and so on. A Creator didn't have to turn 92 different knobs to make all the naturally occurring elements in the periodic table. Instead the galaxies act as immense ecosystems, forging elements and recycling gas ...
... carbon isotopic evidence suggest that life had grown widespread some 3.5 billion years ago and may have existed before 3.85 billion years ago. Once it became safe for life to exist, no more than half a billion years— and perhaps as ...
... carbon ( over silicon , for example ) because of its versatility in forming chemical bonds , rather than strictly its abun- dance . Carbon also exists readily as carbon dioxide , available as a gas or dissolved in water . Silicon ...
... carbon-containing organic molecules throughout the universe, we would expect carbon to play a role in life anywhere. Of course, an energy source must drive chemical disequilibrium, which fosters the reactions necessary to spawn living ...
... carbon dioxide and sulfur dioxide gases. Any liquid water has long since disappeared into space. VENUS. AND. TITAN. Why are Venus and Earth so different? If Earth orbited the sun at the same distance that Venus does, then Earth, too, would ...
Contenido
Cellular Evolution | 85 |
Dinosaurs and Other Monsters | 169 |
Human Evolution | 249 |
Contents | 362 |
Illustration Credits | 364 |
The Evolution of the Universe | 1 |
Cellular Evolution | 85 |
Dinosaurs and Other Monsters | 169 |
Human Evolution | 249 |