Monthly Archive: May 2015

What are Prions

Prions are infectious proteins thought to cause disease as viruses do, though they lack the DNA or RNA that forms the command structure of a virus. Prions have been implicated in scrapie, kuru, Creutzfeldt-Jakob disease, and in Bovine Spongiform Encephalopathy…
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Vascular Tissue in Plants

Vascular tissue is a complex type of tissue found in plants, which allows nutrients and water to be transported throughout the plant via two main transporting tissues – the phloem and the xylem. This conduction of water and nutrients enables…
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The Pelagic Zone

The ocean is often viewed as being constantly teeming with life. But in reality, most of the ocean is a vast wilderness of blue, with nothing below but thousands of feet of water. It takes a well adapted organism to…
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