Colon Primarily Absorbs Water from Waste

Steps:

• Recall the digestive system's roles: mouth, stomach, small intestine handle initial digestion and nutrient absorption.
• Identify the large intestine's components: colon forms most of it, processing leftover material.
• Determine colon's specific job: it reabsorbs water and electrolytes from indigestible waste.
• Eliminate options by matching functions: absorption of water fits colon, not nutrient digestion or elimination.

Why B is correct:

• The colon's main function is water absorption, as defined in human anatomy, turning liquid chyme into solid feces for efficient elimination.

Why the others are wrong:

• A: Small intestine absorbs most nutrients and digested food, not the colon.
• C: Rectum and anus eliminate waste, not the colon's primary role.
• D: Enzymes for digestion are produced by stomach, pancreas, and small intestine glands.

Final answer: B