Nucleus, ribosomes, endoplasmic reticulum, and <span>Golgi apparatus.</span>
The duodenum can therefore be subdivided into four segments: the superior, descending, horizontal, and ascending duodenum. ... The three regions of the small intestine are the duodenum, jejunum, and ileum. The jejunum is about 0.9 meters (3 feet) long (in life) and runs from the duodenum to the ileum.
The answer is a Reptile.
Because it lives in water (also out) and has rough skin.
ITS TWO WE R LEARNING ABOUT IT RN
