Kangas joined Nightly Business Report in 1979; in 2003, his Stocks in the News segment earned a Financial Writers and Editors Award from the Medill School of Journalism at Northwestern University. In 2005, he won a Suncoast Chapter Silver Circle Award.
What Is a Malpighian Tubule? Malpighian tubules are organs within insects that excrete solid waste. Larvae of certain species of beetles use Malpighian tubules to produce silk.
An insects excretory system goes through Malpighian tubes and works with something called the hindgut to get rid of wastes. The hindgut also does other things to aide in not g â¦ etting dehydrated like holding 90% of an insects waters.