Final answer:
The majority of absorption of digestive end products into the bloodstream occurs in the small intestine.
Step-by-step explanation:
The majority of absorption of digestive end products into the bloodstream occurs in the small intestine. The small intestine is the primary digestive organ in the body and is where most digestion and practically all absorption occurs. It has a highly folded surface containing finger-like projections called the villi, which increase its surface area for efficient nutrient absorption.