演化學

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演化機制

Endless Forms Most Beautiful  

21.1 the Darwinian revolution

challenged traditional views

of a young Earth inhabited by

unchanging species

Scala Naturae and Classification of Species  

Ideas About Change over time  

lamarck’s Hypothesis of Evolution  

21.2 Descent with modification by

natural selection explains the

adaptations of organisms and

the unity and diversity of life

Darwin’s Research  

The Voyage of the Beagle  

Darwin’s Focus on Adaptation 

Ideas from The Origin of Species  

Key Features of Natural Selection  

21.3 Evolution is supported by an

overwhelming amount of

scientific evidence 

Direct observations of Evolutionary Change  

Homology  

the Fossil Record 

Biogeography  

What Is theoretical About Darwin’s view of life?  

 

phylogenetic系統發生 Reconstruction  

Investigating the tree of Life  

22.1 Phylogenies show evolutionary

relationships

Binomial Nomenclature 

Hierarchical Classification  

Linking Classification and Phylogeny  

What We Can and Cannot Learn from Phylogenetic Trees  

 Applying Phylogenies

22.2 Phylogenies are inferred from

morphological and molecular

data

Morphological and Molecular Homologies  

Sorting Homology from Analogy  

Evaluating Molecular Homologies  

22.3 Shared characters are used to

construct phylogenetic trees

Cladistics  

Phylogenetic Trees with Proportional Branch Lengths  

Maximum Parsimony and Maximum Likelihood  

Phylogenetic Trees as Hypotheses  

22.4 An organism’s evolutionary

history is documented in its

genome

Gene Duplications and Gene Families 

Genome Evolution  

 

22.5 Molecular clocks help track

evolutionary time

Molecular Clocks 

Applying a Molecular Clock: Dating the Origin of HIV  

 

22.6 Our understanding of the tree

of life continues to change

based on new data 

From Two Kingdoms to Three Domains 

The Important Role of Horizontal Gene Transfer  

 

微觀演化

the smallest Unit of evolution  

23.1 Genetic variation makes

evolution possible

Genetic Variation  

Sources of Genetic Variation 

23.2 The Hardy-Weinberg equation

can be used to test whether a

population is evolving

Gene Pools and Allele Frequencies  

The Hardy-Weinberg Equation 

23.3 Natural selection, genetic drift,

and gene flow can alter allele

frequencies in a population

Natural Selection  

Genetic Drift 

Effects of Genetic Drift: A Summary  

Gene Flow  

 

23.4 Natural selection is the only

mechanism that consistently

causes adaptive evolution  

Natural Selection: A Closer Look 

The key Role of Natural Selection in Adaptive Evolution  

Sexual Selection  

 Balancing Selection

Why Natural Selection Cannot Fashion Perfect Organisms  

 The Sickle-Cell Allele

物種和種化

that “Mystery of Mysteries”  

24.1 The biological species concept

emphasizes reproductive isolation

The Biological Species Concept 

Other Definitions of Species  

 

24.2 Speciation can take place with or

without geographic separation

Allopatric (“Other Country”) Speciation  

Sympatric (“Same Country”) Speciation  

Allopatric and Sympatric Speciation: A Review  

 

24.3 Hybrid zones reveal factors that

cause reproductive isolation

Patterns Within Hybrid Zones 

Hybrid Zones and Environmental Change  

Hybrid Zones over Time  

24.4 Speciation can occur rapidly

or slowly and can result from

changes in few or many genes  

The Time Course of Speciation 

Studying the Genetics of Speciation  

From Speciation to Macroevolution  

 

巨觀演化 

A surprise in the Desert  

25.1 Conditions on early Earth made

the origin of life possible

Synthesis of Organic Compounds on Early Earth  

Abiotic Synthesis of Macromolecules  

Protocells  

Self-Replicating RNA  

25.2 The fossil record documents the

history of life

The Fossil Record  

How Rocks and Fossils Are Dated  

The Origin of New Groups of Organisms  

25.3 Key events in life’s history

include the origins of unicellular

and multicellular organisms and

the colonization of land

The First Single-Celled Organisms 

The Origin of Multicellularity  

The Colonization of Land  

 

25.4 The rise and fall of groups of

organisms reflect differences in

speciation and extinction rates

Plate Tectonics 

Mass Extinctions  

Adaptive Radiations  

25.5 Major changes in body form

can result from changes in the

sequences and regulation

of developmental genes

Effects of Developmental Genes 

The Evolution of Development  

Evolutionary Novelties  

Evolutionary Trends  

 

25.6 Evolution is not goal oriented