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.
Explore Visual Aids, Cavities, and more! Epithelia tissue covers the body surfaces, lines body cavities, forms external and internal linings of many organs, and constitutes glands. It has many different forms for its many functions: protection, secretion, excretion, absorption, filtration, and sensation. Each type of epithelial tissue will be outlined in detail. See More