Bariatric surgery involves creating a small pouch at the esophagus which severely limits food intake. The stomach may be stapled, banded, or bypassed. The most common bariatric surgery procedures are gastric bypass, sleeve gastrectomy, adjustable gastric band, and biliopancreatic diversion with duodenal switch.
Answer:
C
Explanation:
the first 2 choices aren't even systems at all, and D is specifically talking about the water and not mentioning animals/plants at all.
hope this helps!
The answer is C because he has all the following characteristics
