http://www.aquiguatemala.info/2008/09/03/baja-verapaz-biosphere-reserve-of-the-sierra-de-las-minas/ Guatemala history, folklore and traditions Sat, 07 May 2011 00:35:23 +0000 hourly 1 http://wordpress.org/?v=3.0.1 http://www.aquiguatemala.info/2008/09/03/baja-verapaz-biosphere-reserve-of-the-sierra-de-las-minas/comment-page-1/#comment-7815 Natisha Jolliff Tue, 28 Sep 2010 09:46:21 +0000 http://www.aquiguatemala.info/?p=98#comment-7815 Insects do not have gills nor lungs...they have a central tube or tracheal system that divides into more compact and more compact tubes via which air is forced by muscular action with the insect. Each are perfectly adapted to their habitats. Insects do not have gills nor lungs…they have a central tube or tracheal system that divides into more compact and more compact tubes via which air is forced by muscular action with the insect. Each are perfectly adapted to their habitats.

]]>