3. Which part of the digestive system removes water from the indigestible parts of foods, producing feces?

Answer: B

Explanation:

The large intestine removes water from the indigestible parts of foods, producing feces.

The large intestine plays a crucial role in the digestive system by absorbing water from indigestible food matter, which helps in the formation of solid waste, or feces.

A) Small intestine

The small intestine is primarily responsible for the digestion and absorption of nutrients from food. While it does absorb some water, its main function is not to remove water from indigestible parts but rather to facilitate nutrient absorption.

B) Large intestine

The large intestine is the correct answer as its primary function is to absorb water and salts from the remaining indigestible food matter. This process is essential for forming and expelling feces from the body.

C) Rectum

The rectum serves as a storage site for feces before elimination from the body. It does not play a role in the removal of water from indigestible food matter; instead, it functions as a passage for feces.

D) Stomach

The stomach's primary function involves the mechanical and chemical breakdown of food through gastric juices. It does not contribute to the removal of water from indigestible parts; thus, it is not involved in feces production.

Conclusion

The large intestine is definitively the correct answer as it specializes in water absorption from indigestible materials, leading to the production of feces. In contrast, the small intestine, rectum, and stomach serve different functions that do not directly relate to the process of feces formation.