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.
In terms of food sources the beluga whale is known to live on a diet of fish, crustaceans, krill, squid, octopus, crabs, sand worms and other small prey. In order to maintain their energy these whales may consume on average between 2 % â 3 % of their body weight on a daily basis or 40 lbs. to 70 lbs. of food daily.lso unlike other whale species the beluga lacks a dorsal fin, but instead has a ridge where the dorsal fin would normally be located. In order to navigate the ocean the belugas flippers resemble paddles that help it steer and turn and its rear flukes help the whale propel itself through the water.