If our body were a compound instead of a mixture, several critical things would change—none of them good:

1. Lack of Functionality:A compound has a fixed chemical composition. That means:

   • No individual organs, tissues, or cells could exist.

   • No chemical reactions like digestion, respiration, or muscle contraction could happen independently.

   • The body couldn't grow, repair, or respond to the environment.

2. No Life Processes:Life depends on thousands of biochemical reactions happening simultaneously in different parts of the body. A single compound can’t support such complexity.

3. No Adaptability:Mixtures allow flexibility (like adjusting water levels, nutrients, or oxygen in the blood). In a compound, nothing can be altered without changing the entire substance.

4. Death of Cellular Diversity:Cells (muscle, nerve, blood, etc.) are made of various compounds and perform specific functions. A single compound body would mean no cells and no organ systems.

In short:If our body were a compound, life would not be possible. Mixtures allow the complexity and flexibility that life needs to exist.