Final answer:
Neonatal physiologic jaundice can lead to hepatic or pre-hepatic jaundice due to immature liver enzyme activity.
Step-by-step explanation:
In neonatal physiologic jaundice, conjugation failure can lead to hepatic jaundice or pre-hepatic jaundice due to immature liver enzyme activity. In this condition, the liver's ability to effectively process and excrete bilirubin is not fully developed. As a result, unconjugated bilirubin accumulates in the blood, causing jaundice.