Without a liver unconjugated bilirubin would accumulate in blood but there would be no conjugation. The other features listed may be similar in both. With deconjugation there is increased passive diffusion across the jejunal mucosa which results in a decreased intraluminal concentration and decreased micelle formation. A common bile duct stone can cause jaundice, pancreatitis, and a major elevation in alkaline phosphatase. Another of those sine qua nons .
Undigested carbohydrates are the main substrate for intestinal gas production.
Skim milk has less fat but the same amount of lactose as whole milk. Air is mostly nitrogen. At least on this planet. Extraterrestrial belchers may be different. Hence the normal albumin.