Chapter 1 Flashcards
7 characteristics of life
- Cellular organization
- Ordered complexity
- Sensitivity
- Growth, development, and reproduction
- Energy utilization
- Homeostasis
- Evolutionary adaptation
Hierarchical organization of living systems
- Cellular level
- Organismal level
- Population level
- Ecosystem level
- Biosphere
- emergent properties appear going up hierarchy
Inductive reasoning
Reasoning where the logic flows from specific to general.
Example: if poodles have hair, and terriers have hair, and every dog do you observe has here, you may conclude that all dogs have hair
Deductive reasoning
taking a general idea and looking for its validity by examining specific examples
Reductionism
reducing the complex system to the workings of its individual parts. Not able to account for emergent properties.
Artificial selection
pidgin breeding example
Natural selection
Darwin’s explanation for the variation in species
On the Origin of Species
Darwin wrote draft in 1846, not published until 1858 after similar essay from Alfred Russell Wallace
Evidence supporting evolution by natural selection
- Fossil record
- Age of the earth
- Mechanism of heredity
- Comparative anatomy
- Molecular evidence (ex: hemoglobin gives phylogenetic tree)
Unifying themes
- Cell Theory (organization)
- Molecular basis of inheritance
- Relationship between structure and function
- Evolutionary change drives diversity
- Evolutionary comp survey she explains commonalities of living organisms
- Cells are information processing systems
- Nonequilibrium state