The tongue is anchored to the mouth by webs of tough tissue and mucosa. The tether holding down the front of the tongue is called the frenum. In the back of the mouth, the tongue is anchored into the hyoid bone. The tongue is vital for chewing and swallowing food, as well as for speech. The four common tastes are sweet, sour, bitter, and salty. A fifth taste, called umami, results from tasting glutamate (present in MSG).
If we did not live in a structured society with other people, laws would not be necessary. We would simply do as we please, with little regard for others. But ever since individuals began to associate with other people -- to live in society --laws have been the glue that has kept society together.
A civilization must also have a government to make laws, and lead the people. For a society to survive, the people must follow rules. It is the job of the leaders to decide these rules, and to make sure they are followed. A government s job is to protect its people, and allow a society to grow and develop.orking together is also important in a civilization. People in our society have special jobs in which they produce certain goods or provide services. Different jobs are needed to make a society work, and to meet the needs of a civilization. Some people make clothes or build houses, while others grow or prepare food.