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.
ORGANS. TISSUES. Epithelial cells are highly specialized cells that line the small intestine. They help with the process of absorption of water, glucose molecules and mineral ions. The cells surface if highly folded, since this greatly increases the surface area of the cell.nderstanding how the small intestine functions requires looking at the structure of the mucosa in more detail. A light microscope view of epithelial cells from the small intestine. Magnification x 1000. EPITHELIAL CELL DYNAMICS.