Question

an example of a chemical reaction in biology is
○ turning an acid to a base
○ sound waves
○ digestion
○ burning wood

Explanation:

• "Turning an acid to a base" is a chemical process but more related to Chemistry (acid - base reactions) rather than a biological chemical reaction.
• "Sound waves" are a physical phenomenon, not a chemical reaction.
• "Digestion" involves chemical reactions (like breakdown of food molecules by enzymes) that occur in biological systems (organisms), so it is a chemical reaction in Biology.
• "Burning wood" is a chemical reaction (combustion) but is a general chemical process, not specifically a biological one.

Answer:

C. Digestion