Why is it popular or well known? The Chrysler Building is a masterpiece of Art Deco design, built at a time when there was great competition in New York to build the tallest building. Why is it important to study it? A clear understanding of the nitrogen cycle would help to make a profitable use of fertilisers and manure, and reduce the nitrogen content in the water cycle and atmosphere. What is problematic about it? Breast cancer is the most common form of cancer found in women; it is on the increase and is therefore a serious concern. The lifetime risk of developing breast cancer is 1:11 for women and 1:1000 for men. What are its categories or components? There are four different kinds of teeth; the anterior peg-shaped incisors and dagger-shaped canines and the posterior broad, cusped, molars and pre-molars. What does it do? The neurological system has been designed in the human body for the function of control and coordination by electrical and chemical signals. What is its history? The Tamworth pig probably descended from the Old English Forest Pig from 1683 and is now extremely popular throughout Britain and also the world. They originate from the Midlands and the name derives from the Staffordshire town, Tamworth. https://339efcb25eb75e967b0d-ff8eeadd950d51fd1fc939dca75b3973.ssl.cf1.rackcdn.com/assets_green.swf