How do scientists ask and answer questions and how do they evaluate data? The How Do We Know? feature in every chapter helps students understand the process of science by showing students the path that scientists took to uncover specific biological discoveries.
Chapter 1. The Nature of Biology
How Do We Know? Spontaneous Generation
Chapter 2. The Nature of Science
How Do We Know? Hypothesis Testing and Scientific Proof
Chapter 3. Human Development
How Do We Know? Eggs and Sperm Are Both Needed for Fertilization
Chapter 4. Inheritance, Genes, and Physical Characteristics
How Do We Know? Pedigree Analysis
Chapter 5. Cancer
How Do We Know? Cancer-Causing Genes from Malfunctioning Normal Genes
Chapter 6. Reproduction
How Do We Know? The Female Reproductive Tract Helps Sperm Find an Egg
Chapter 7. Plants, Agriculture, and Genetic Engineering
How Do We Know? Evaluating the Safety of Genetically Engineered Products
Chapter 8. Health Care and the Human Genome
How Do We Know? How Human Embryonic Stem Cells Can Be Directed to Form Specialized Cells
Chapter 9. Evolution
How Do We Know? Constructing Evolutionary Trees
Chapter 10. The Evolution of Disease
How Do We Know? The Many Species That Live on You
Chapter 11. Homeostasis
How Do We Know? Hypothalamic Control of Temperature
Chapter 12. Circulation and Respiration
How Do We Know? Measuring Blood Pressure
Chapter 13: The Nervous System
How Do We Know? The Pleasure Centers of the Brain
Chapter 14. Infectious Disease and the Immune System
How Do We Know? The Immune Response Is Two-Fisted
Chapter 15. Nutrition, Activity, and Wellness
How Do We Know? Stress Weakens the Immune Response
Chapter 16. Ecology
How Do We Know? Long-Term Ecological Research
Chapter 17. Biodiversity and Human Affairs
How Do We Know? Experimental Island Zoogeography
Chapter 18. Human Population Growth
How Do We Know? Modeling Population Growth
[“How Do We Know”] is a very important feature of a gen-ed text. I think that short vignettes such as this enliven the text, and make it a bunch more interesting to the student … I very much like the “informed citizen” approach.
- Western Connecticut State University
The material is interesting and engages the student.
- Pitt Community College
Probably one of the best presentations of evolutionary trees that I have seen …
- East Carolina University
… good job of integrating them through the chapter.
- Towson University
good example, important concept and technique. At the right level.
- Portland State University
Very relevant. Students really enjoy learning information that they can apply to themselves.
- Arkansas State University Beebe