The U.S. tax system, which the IRS oversees and administers, is based on the principle of voluntary compliance. Duties and Powers. The IRS is responsible for enforcing the Internal Revenue Code (U.S.C.A. tit. 26), which codifies all U.S. tax laws.
Baleen: Also known as whalebone, baleen is a filter-feeder system inside the mouths of whales in the Mysticeti suborder. Plates of keratin grow from the gums of the upper jaw. When the whales feed, they take in large amounts of food-rich water and then use baleen to filter out the water while retaining krill.ifferent species of whales vary drastically in terms of both size and weight. Baleen whales in the Mysticeti suborder are generally larger than those of the Odontoceti suborder. The Mysticeti group includes the blue whale (Balaenoptera musculus)âthe largest animal ever to live on the planet.
What do blue whales eat? The blue whale is the biggest animal in the world, but strangely, it survives by eating very small creatures! These tiny animals are called krill, which look like very small shrimp and are around 1-2cm long. An adult whale can eat up to 40 million krill a day or around 8,000 lbs. Blue whales can only eat small prey because they have a very narrow oesophagus (throat). Watch a video of a blue whale below: