Answer:
D) to break down oxygen entering the respiratory system
Explanation:
Because the function of mucus in the nasal cavity is warm, moisturize and filter air entering
Answer:
Majority of absorption occurs in the Jejenum
Explanation:
Absorption of the majority of nutrients takes place in the jejunum, with the following notable exceptions: Iron is absorbed in the duodenum. Vitamin B12 and bile salts are absorbed in the terminal ileum. Water and lipids are absorbed by passive diffusion throughout the small intestine.
