Final answer:
Fenestrated capillaries are located in areas where filtration of larger molecules occurs, such as the small intestine and kidneys.
Step-by-step explanation:
Fenestrated capillaries are located in areas where filtration of larger molecules occurs. These capillaries have pores or fenestrations in their endothelial lining, which allows larger molecules to pass through. They are commonly found in the small intestine for nutrient absorption, the kidneys for blood filtration, and in various endocrine structures.