When all was said and done, Barack Obama and Mitt Romney, the two major party candidates for president in 2012, spent close to $1.12 billion -- not counting the millions more spent by the parties and outside groups. Overall, the presidential race cost more than $2.6 billion in that cycle. 2012 Presidential Race. When all was said and done, Barack Obama and Mitt Romney, the two major party candidates for president in 2012, spent close to $1.12 billion -- not counting the millions more spent by the parties and outside groups. Overall, the presidential race cost more than $2.6 billion in that cycle. Fundraising.
Best Answer: Epithelial tissue has 4 functions: protection, absorption, secretion, stimulation. Protection is reflected in the fact that epithelial cells are closely packed.
Epithelia are a sheet of cells that line almost all body surfaces (skin, intestine, lung, body cavities), form the functional units of secretory glands, and line the inner surface of blood and lymphatic vessels. List the junctional complexes that hold epithelial cells together and their primary functions. 2  List the functions of the basement membrane and how epithelial cells attach to the basement membrane.