1. What were the 4 reagents used during chemical digestion lab and what did they detect? 2. How do humans actually hear in detail? 3. What is

1. What were the 4 reagents used during chemical digestion lab and what did they detect?

2. How do humans actually hear in detail?

3. What is phenolpthalein and what was it used for in the labs?

4. Describe blood flow through the human body in detail!

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