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Wood first appeared in plants called progymnosperms.
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve
Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto
Oil molecules cling to metal surfaces but easily slide against each other.
Some Ford metal line connections use springlocks and O-rings.