act as the functional units of the respiratory system by passing oxygen into the body and carbon dioxide out of the body. Finally, the muscles of respiration, including the diaphragm and intercostal muscles, work together to act as a pump, pushing air into and out of the lungs during breathing.
The Ivory-billed Woodpecker (Campephilus principalis) is an extremely rare member of the woodpecker family, Picidae. It is officially listed as an endangered species, but by the end of the 20th century had widely been considered extinct until it was apparently sighted along the Cache River in Arkansas in 2004 and 2005.
But such deletions scarcely make a dent. And although eBay has installed filters to catch words like âivory,â smugglers dance around them. First, they called ivory âfauxivory.â When filters caught that ruse, smugglers called ivory âox boneâ â until filters picked up that, too.Each time eBay programs an alias into its filters another pops up.ome of these species are sold to collectors for hundreds or even thousands of dollars.â. Ivory products are the most popular wildlife items on Internet markets, despite a global ban on ivory sales imposed by the 180-nation Convention on International Trade in Endangered Species (CITES).