The role is to build up water with its dam to create a lake thus creating parts of the ecosystem it is also food for some animals.
R R Rr is the result of 1st punnet square and the genotype used to produce f2
r
r
Answer:
something the economy can buy with its own money for own personal use
Explanation:
The ileum contains villi that project into the lumen and increase the amount of surface area.
Villi are small finger-like structures that project into the lumen of the small intestine. Villi increase the surface area of the intestinal walls for easy and quick absorption of digested food with the addition of digestive secretions. Villi vary in length from about 0.5 to 1 mm. They are usually found in large numbers at the beginning of the small intestine and they reduce toward the end of the tract.