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A 46 year old male sat down hard on a bench banging the lower part of his head against the rail behind. There was a large “goose-egg” on his head and lots of pain. He developed a headache from the injury but felt better within a couple of hours and […]

Methods for Assaying/Detecting Viruses Write a paragraph to teach to the rest of the class one of the following techniques used to assay/detect a virus. Do not select a technique already chosen by another student. Describe briefly how the technique you select detects a virus. What are the advantages/disadvantages/limitations of […]

In the mid-seventeenth century, Dutch scientist Jan Baptista van Helmont struggled to understand where plants get the material that allows them to grow larger. He planted a willow tree of a given weight in a ?xed quantity of soil and then, ?ve years later, weighed both the willow and the […]

The human body is truly remarkable and is designed to function effectively. Organs are important structures composed of different tissues that facilitate specific functions within the body. Organs function as part of an integrated group of structures known as organ systems. These organ systems form the organizational units that are […]