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.
They are generally classified by size and shape. Epithelial tissue is classified according to: 1. The number of cell layers. 2. The shape of the cells. 3. Whether the cells are ciliated or unciliated. So examples of epithelial tissue using this classification would be.1  Simple.imple squamous tissues are epithelial tissues with only one â¦ cell layer while stratified squamous tissues are epithelial tissues with more than one layer.     There is another special type of epithelial tissue called transitional squamous cells.