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.
1) Epithelial Tissue. Epithelial tissue forms the covering or lining of free body surfaces, both internal and external. For example, the outer layer of the skin is formed from epithelial tissue as are the inner linings of the digestive tract and blood vessels.As a group, epithelial tissues perform a variety of functions, including protection, absorption, excretion, secretion and lubrication.I ANIMAL TISSUES. In animals, organs are composed of varying combinations of four basic tissue types -- epithelial tissue, connective tissue, muscle tissue and nervous tissue. Each of these tissues has distinctive structural features and specific functions which are again combined to produce functioning organs.