“Exploring the Themes of A&P, Cell, Chemistry, Tissues, and Skin: Understanding the Fundamentals of Life”

Module 01: Themes of A&P, Cell, Chemistry, Tissues and skin
Answer with explanations to show your understanding of the material covered in Unit 1. Use appropriate science language and clear explanation using complete, well-constructed sentences. Remember to explain, show off the knowledge you have accumulated, and put in some writing effort (this is a high stake- 30 points assignment). Each question is graded based on this rubric: 
0-5 
points for correct content, critical thinking and application of knowledge/concepts. 
0-3 
points for correct grammar 
0-2 
points for citations (valid sources, including your textbook!- mention page numbers if using the book; and make sure I can access the resource you cite)
Most of you have seen oak leaves fall on driveways and on streets when fall arrives. These pigments form the leaves leave stains behind when blown away. Oak leaves also contain the water-soluble poison tannin. If you rubbed your skin with oak leaves very little is likely to happen to your skin. Why should it not poison you through the skin?  
2. When an inappropriate amino acid is substituted in place of another, as occurs in certain genetic disorders, the resulting protein is either poorly functional or non-functional. Since proteins contain hundreds if not thousands of amino acids, why should the change of a single amino acid be so critical? 
3. How would you prove (or explain) to someone that plants are living beings? 
book name 
Anatomy & Physiology: The Unity of Form and FunctionKenneth Saladin, 10e
Practice Atlas for Anatomy & PhysiologyMcGraw Hill, 1e