List five major functions of epithelium in the body, and give examples of each. 1. protection; epithelium covering body surface protects against bacterial invasion and chemical damage. 2. absorption; epithelium specialized to absorb substances lines the stomach and small intestines. 3. filtration; in kidney tubules, epithelium filters (and absorbs and secretes). 4. excretion; Sweat is excreted from the body by epithelial cells in the sweat glands. 5. secretion; In glands, epithelial tissue is specialized to secrete specific chemical substances such as enzymes, hormones and lubricating fluids.
Edmonton is 685.25 sq. km (264.58 sq. miles), according to Statistics Canada. As of the 2016 Census, Edmonton's population was 932,546 people, making it the second-largest city in Alberta, after Calgary. It is the fifth-largest city in Canada. Edmonton was incorporated as a town in 1892 and as a city in 1904. Edmonton became the capital city of Alberta in 1905.
A census was conducted in Canada on 10 May 2011. Preliminary figures released on 8 February 2012 showed that the officially recorded population of Canada was 33,476,688. Today, Canada has an estimated population of 35.87 million. Canada is one of the most sparsely populated countries in the world, with much of its land inhospitable. The country's population density is just 3 people per square kilometer (8/square mile), which ranks 228th in the world.