Final answer:
Reducing the water content of feces would most likely result in constipation. This condition arises when the colon absorbs excess water, leading to harder feces that are more difficult to eliminate. The small and large intestines' absorption processes are critical in maintaining the balance of water in feces.
Step-by-step explanation:
Reducing the water content of feces to 20% from the usual amount of about 40% would lead to the condition known as constipation. The process of absorption occurs in both the small and large intestines. While the small intestine absorbs approximately 90% of the water you ingest, the large intestine absorbs the most of the remaining water. This process is crucial for converting the liquid chyme into semisolid feces. If defecation is delayed, more water is absorbed, and the feces become firmer, which may lead to constipation.
Problems with elimination, such as constipation and diarrhea, are common health concerns that affect digestion. Constipation occurs when there is excess water removal in the colon, hardening the feces. Conversely, if enough water is not removed, which would not be the case here, it results in diarrhea. Therefore, with a reduction of water content to 20%, constipation is the most likely outcome, as the feces would be firmer and harder to pass.