Trachea to air sacs. Many insects, such as grasshoppers and bees, which actively pump the air sacs in their abdomen, are able to control the flow of air through their body. In some aquatic insects, the tracheae exchange gas through the body wall directly, in the form of a gill, or function essentially as normal, via a plastron. Note that despite being internal, the tracheae of arthropods are lined with cuticular tissue and are shed during moulting (ecdysis). In 2008, a Colombian woman, Claudia Castillo (30), received a trachea transplant using her own stem cells. Between 2011 and 2014 Paolo Macchiarini
Less Commonly Taught Languages individuals interested in less commonly taught languages" founded in 1990 and based at the Indiana University Bloomington. The Council's mission is to increase the number of Americans who choose to learn one or more of the less commonly taught languages (LCTLs) as a means of enhancing cross-cultural communication among citizens of the United States . ... The Council seeks to improve the teaching and learning of these languages and to make them more generally available. The Council is the national voice for organizations and individuals who represent the teaching of these less commonly taught languages at both the collegiate and