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How did life originate?

How did life originate?
How did life originate? Living things (even ancient organisms like bacteria) are enormously complex. However, all this complexity did not leap fully-formed from the primordial soup. Instead life almost certainly originated in a series of small steps, each building upon the complexity that evolved previously: Simple organic molecules were formed. Simple organic molecules, similar to the nucleotide shown below, are the building blocks of life and must have been involved in its origin. Multicellularity evolved.

http://evolution.berkeley.edu/evolibrary/article/origsoflife_04

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60 Small Ways to Improve Your Life in the Next 100 Days Contrary to popular belief, you don’t have to make drastic changes in order to notice an improvement in the quality of your life. At the same time, you don’t need to wait a long time in order to see the measurable results that come from taking positive action. All you have to do is take small steps, and take them consistently, for a period of 100 days. Below you’ll find 60 small ways to improve all areas of your life in the next 100 days. Home

How We Are Evolving Thousands of years ago humans moved for the first time into the Tibetan plateau, a vast expanse of steppelands that towers some 14,000 feet above sea level. Although these trailblazers would have had the benefit of entering a new ecosystem free of competition with other people, the low oxygen levels at that altitude would have placed severe stresses on the body, resulting in chronic altitude sickness and high infant mortality. Earlier this year a flurry of genetic studies identified a gene variant that is common in Tibetans but rare in other populations. This variant, which adjusts red blood cell production in Tibetans, helps to explain how Tibetans adapted to those harsh conditions. The dis­covery, which made headlines around the world, provided a dra­­matic example of how humans have undergone rapid biological adaptation to new environmental circumstances in the recent past. Select an option below:

The Ultimate Field Guide to Subatomic Particles - io9 This is, for the most part, an accurate article, except for a few statements. "Exactly what makes a fermion a fermion is a bit complicated, but suffice it to say that fermions are all the particles that deal with matter. So what about the last group of elementary particles, the ones that don't deal with matter? These are the bosons, and they deal with the fundamental forces of the universe." The statements above can be misinterpreted as suggesting that fermions are defined as particles that deal with matter and bosons are defined as particles that deal with forces.

Jesus Christ in comparative mythology The study of Jesus Christ in comparative mythology is the examination of the narratives of the life of Jesus in the Christian gospels, traditions and theology, as it relates to Christian mythology and other religions. For over a century, various authors have drawn a number of parallels between the Christian views of Jesus and other religious or mythical domains.[1] These include Greco-Roman mysteries, ancient Egyptian myths and more general analogies involving cross-cultural patterns of dying and rising gods in the context of Christ myth theory.[2] While some scholars continue to support these analogies, others contend that the perceived similarities are often without historical basis, that first century monotheistic Galilean Jews would not have been open to pagan myths, and claim that the analogies are usually based on parallelomania, exaggerating the importance of trifling resemblances.[3][1][4][5]

Artificial selection in the lab Artificial selection in the lab For thousands of years, humans have been influencing evolution, through changes we have caused in the environment — and through artificial selection in the domestication of plants and animals. In many cases, scientists have carefully documented evolution through artificial selection in the lab. John Endler performed experiments in microevolution, allowing artificial selection to manipulate the spots on guppies. Guppy spots are largely genetically controlled.

Contrasting and categorization of emotions The contrasting and categorisation of emotions describes how emotions are thought to relate to each other. Various recent proposals of such groupings are described in the following sections. Contrasting Basic Emotions[edit] The following table,[1] based on a wide review of current theories, identifies and contrasts the fundamental emotions according to a set of definite criteria. Evolution in Action: Lizard Moving From Eggs to Live Birth Evolution has been caught in the act, according to scientists who are decoding how a species of Australian lizard is abandoning egg-laying in favor of live birth. Along the warm coastal lowlands of New South Wales (map), the yellow-bellied three-toed skink lays eggs to reproduce. But individuals of the same species living in the state's higher, colder mountains are almost all giving birth to live young. Only two other modern reptiles—another skink species and a European lizard—use both types of reproduction. (Related: "Virgin Birth Expected at Christmas—By Komodo Dragon.")

Propaganda and Disinformation: Videotapes in the Media Resources Center, UC Berkeley Documentaries About Propaganda Are We Winning, Mommy? An examination of the historical roots of the Cold War and its effects on American life. The film features a wealth of images and historical footage from both European and American archives as well as revealing interviews with some of the key players on both sides.

50-Legged Creature May Have Been Top Predator Of Ancient Seafloor An artist's rendering of a Tegopelte, a foot-long arthropod that lived 500 million years ago.Marianne Collins An ancient cockroach-like creature nearly a foot long once skittered along the seafloor in what is now Canada, a new fossil find reveals. The fossil, a series of 500-million-year-old tracks, captured the movement of a large seafloor-dwelling creature with at least 25 pairs of legs.

The effect of Music on Plants (The Plant Experiments) About Positive Music by Don Robertson The Plant Experiments In 1973, a woman named Dorothy Retallack published a small book called The Sound of Music and Plants. Her book detailed experiments that she had been conducting at the Colorado Woman’s College in Denver using the school’s three Biotronic Control Chambers. Mrs. Neandertal Children Developed on the Fast Track Parents who think their kids are growing up too fast should be glad they're not Neandertals. A new study of the fossilized teeth of eight Neandertal children finds that their permanent teeth grew significantly faster and erupted earlier than those of our own species, Homo sapiens. Taken with recent studies showing subtle differences in the brain maturation and developmental genes in Neandertals and H. sapiens, the new data suggest Neandertal kids may have reached adulthood a few years faster than modern human children do. Researchers have long known that humans grow up slowly. We take almost twice as long as chimpanzees to reach adulthood. Our distant ancestors were more like chimps; Lucy and other australopithecines, for example, matured quickly and died young.

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