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Triple A Learning IB Blogs

November 13, 2011

What’s Cooking? – The Evolution of Modern Man

Filed under: Global Contexts — Tags: , , , , , — triplea_ble @ 12:57 pm

The following blurb can be found on a website called rawfoodlife.com – one of the many dedicated to espousing the virtues of the Raw Food Diet.

A raw food diet is not just good for you – it’s also good science! You don’t have to take our word for it, have ‘faith’ or trust the latest nutrition guru. Science now proves that cooking not only destroys nutrition and enzymes but chemically changes foods from the substances needed for health into acid-forming toxins, free-radicals and poisons that destroy our health.

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March 15, 2010

Is evolution responsible for our ailments?

Filed under: Biology — Tags: , — Stephen @ 5:32 am

Brains have shrunk by about 10% in the past 5,000 years. Average shoe sizes have grown four sizes for men and women since 1900, and heights are all over the map. Americans, who were among the world's tallest people in 1900, have leveled off in the past 25 years (averaging 5-foot-10 for men and 5-foot-4 for women).

Evolution, the theory goes, guarantees survival to the fittest. But can we blame evolution for some of today’s most pressing health problems, such as cancer, obesity, diabetes and cardiovascular disease?

Link to article

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March 5, 2010

An RNA world

Filed under: Biology — Tags: , , , — Stephen @ 9:20 pm

The exosome is a major eukaryotic nuclease located in both the nucleus and the cytoplasm that contributes to the processing, quality control and/or turnover of a large number of cellular RNAsDoubts persist to the possibility of RNA being THE hereditary / genetic material that played THE key role in the creation of life on Earth. However work carried out at the University of Colorado may have shed further light on this. The findings could be a substantial step toward understanding “the very origin of Earthly life,” the lead researcher contends.

More on the work carried out at the University of Colorado

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