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Evolution
Natural Selection
Patterns of Evolution
Evidence for Evolution
Mechanisms of Microevolution
100

A change in allele frequencies in a gene pool over many generations

What is Evolution?

100
The survival and reproduction of the organisms that are genetically best fit for their environment
What is the definition of Natural Selection?
100

Two species evolve together. 

What is coevolution?

100
The hip bones of a dolphin and the tailbone of a human
What are Vestigial Structures?
100
Migration leads different populations to exchange alleles.  Increases genetic variation in a population. 

What is gene flow? 

200

Survival of the fittest

What is natural selection?

200

Name two out of the four principles of natural selection.  

1.  Genetic variation 

2.  Overproduction of offspring

3.  Adaptation 

4. Descent with modification

200

When two species in a similar environment evolve structures with similar functions (e.g. insect wings and bird wings)

What is convergent evolution? 

200
An example of a structure that is homologous to a cat’s paw.
What is a Dog’s paw, human arm, bat wing, whale flipper
200

When a trait is needed to reproduce but does not improve survival (e.g. peacock feathers)

Nonrandom mating (sexual selection)

300
Charles Darwin
Who is the father of Evolution?
300
The name of the islands where Darwin studied and gathered his evidence on Natural Selection
What are The Galapagos Islands?
300
A population of wolves were domesticated and developed softer temperaments.  Eventually this population became its own species. 

What is speciation?

300
Body parts that share a common function but have a different structure
What is an analogous structure?
300

Evolution that occurs as a result of randomness;  the more common allele's frequency increases, will the rarer allele will eventually disappear. 

What is a genetic drift? 

400

Name one condition necessary for evolution to occur. 

Genetic variation

400

A variation with a survival advantage. 

What is an adaptation?

400
A mainland species on an island splits off into five different species due to changes in the environment. 

What is adaptive radiation (divergent evolution)? 

400
Name examples of evidence in biochemistry that support evolution.

1.  DNA structure similarities (pseudogenes)

2.  Common chemical reactions

400

Define genetic drift. 

When random events lead to changes in allele frequency in a population, eventually leading some alleles to disappear. 

500

All the alleles in a species.

What is a gene pool? 

500

Name all four principals of natural selection. 

1. Genetic variation

2. Overproduction of offspring

3.  Adaptation 

4.  Descent with modification

500

Evolutionary pattern characterized by periods of relative stability with periodic bursts of change. 

What is punctuated equilibrium? 

500

Name an example of embryological evidence that supports evolution. 

All vertebrates have tailbone during development (many apply)
500

Name three mechanisms other than natural selection that lead to evolution.  

1.  Gene Flow

2.  Nonrandom mating (sexual selection)

3. Genetic drift