What is the primary function of the digestive system?

• A. To break down food and absorb nutrients
• B. To produce hormones for growth
• C. To transport oxygen throughout the body
• D. To regulate body temperature

Answer: (A)

Verified step by step guidance

1. Step 1: Begin by understanding the digestive system's role in the human body. The digestive system is responsible for processing food into smaller molecules that can be absorbed and utilized by the body.
2. Step 2: Recall the primary functions of the digestive system, which include breaking down food mechanically and chemically, absorbing nutrients into the bloodstream, and eliminating waste products.
3. Step 3: Compare the given options to the primary functions of the digestive system. For example, producing hormones for growth is a function of the endocrine system, transporting oxygen is a function of the circulatory system, and regulating body temperature is a function of the integumentary system.
4. Step 4: Identify the correct answer by matching the function of breaking down food and absorbing nutrients to the digestive system's primary role.
5. Step 5: Conclude that the correct answer is 'To break down food and absorb nutrients,' as this aligns directly with the digestive system's primary function.