Introduction to Biology II Spring 2007 Dr. Brad Hoge Introduction – The Nature Of Science

10 Themes in the Study of Life Biology is the Study of Life Science is a human endeavor We are all naturalists What is life? Why are we interested?

Emergent Properties Reductionism vs. Holism Hierarchy of Organization Ernst Mayr Emergent Properties

Cells are Fundamental Robert Hooke Schleiden and Schwann Prokaryotes Eukaryotes

DNA Makes It All Go Round Information Replication Inheritance

Structure and Function Functional Biology Levels of Explanation Explanatory Power Philosophy of Science

Energy and the Environment Thermodynamics Individuals Food Webs Ecosystems

Homeostasis Regulation Feedback

Diversity is the Key Species Concept Domains Unity of Life

Evolution Evolution is the Unifying Theory of Biology What is a unifying theory? Nothing in Biology Makes Sense Except in the Light of Evolution Theodosius Dobzhansky

Natural Selection Darwin Variation Selection Pressure Adaptation

Science Is a Process of Inquiry Discovery Induction Hypothetico-Deductive Reasoning

Hypothesis and Theory Observation Study Hypotheses Experimentation Reexamination Accumulation of Knowledge Theory

The Culture of Science Science is a human endeavor Science and Technology Future Shock