Across
- 3. – The body's natural blood filter that regulates iron levels. (Chapter 1)
- 6. – The gradual development of species over time. (Chapter 2)
- 9. – A tiny infectious agent that can insert its genetic material into human DNA. (Chapter 5)
- 11. Inheritance) – The idea that environmental effects can be passed down across generations. (Chapter 4)
- 12. – A condition where the body struggles to regulate blood sugar, possibly influenced by ancient cold adaptations. (Chapter 2)
- 13. – The pigment that gives skin its color and protects against UV radiation. (Chapter 3)
- 14. V Leiden) – A genetic mutation that increases blood clotting, which may have helped protect against the plague. (Chapter 4)
- 15. – The study of how genes can be switched on or off by environmental factors. (Chapter 3)
- 16. Cell Anemia) – A genetic disease that provides resistance to malaria. (Chapter 1)
- 17. D) – A nutrient essential for bone health, produced when exposed to sunlight. (Chapter 3)
- 18. – A mineral essential for the body, but also a resource for bacteria. (Chapter 1)
Down
- 1. Advantage) – The concept that some diseases provide unexpected survival benefits. (Chapter 1)
- 2. Interference) – A molecular process that can turn off genes in response to environmental changes. (Chapter 3)
- 4. – A disorder that causes the body to absorb too much iron. (Chapter 4)
- 5. Genes) – Genetic elements that move around the genome, influencing evolution. (Chapter 5)
- 7. Fibrosis) – A genetic disorder that may have helped protect against deadly diarrheal diseases. (Chapter 2)
- 8. Linkage) – When genes are inherited together due to their proximity on a chromosome. (Chapter 5)
- 9. – The body's immune response to injury or infection. (Chapter 5)
- 10. – A theory that organisms can pass traits acquired during their lifetime to offspring. (Chapter 4)
- 17. Age) – A historical period of extreme cold that influenced human evolution. (Chapter 2)