Multiple choice

Which system converts food into simpler molecules?

  1. Digestive system

  2. Stomach system

  3. Endocrine System

  4. Reproductive System

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The digestive system is responsible for breaking down food mechanically and chemically into simpler molecules that the body can absorb and use for energy. While the stomach is a key organ in this process, there is no "stomach system." The endocrine and reproductive systems serve entirely different functions in the body.