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.
Epithelial Tissue & functions, types of epithelia in digestive tract. Epithelial Tissue. Epithelium is an animal tissue and is one of the four basic types of tissues in animal. These tissues cover the structures in the whole body and line cavities. They also form different types of glands.Selective absorption, secretion, transport across cells, protection and detecting sensation are its functions.his tissue has cells that are clustered tightly. This tissue is avascular which implies that it should get nourishment through the diffusion of the substances from the connective tissue that is underlying via basement membrane. Types of Epithelia in Digestive tract. Epithelium lines up the digestive tube.