Scientists Natural Selection Evidence for Evolution Speciation Patterns of evolution
100
Who is the scientist that proposed the first mechanisms of evolution?
Jean-Baptiste Lamarck
100
What is the theory of natural selection?
Over time the population changes as advantageous heritable characteristics become more common generation after generation
100
What are the three forms of evidence that convinced Darwin of evolution?
Biogeography
Anatomical Features
Embryology
100
What is speciation?
The formation of a new species
100
What is coevolution?
The process in which one species evolves in response to the evolution of another species
200
What were the two first proposed mechanisms of evolution?
1. Theory of use and disuse
2. Theory of the inheritance of acquired characteristics
200
What Herbert Spencer used to describe natural selection?
Survival of the fittest
200
What feature is a structure with a common evolutionary origin that may serve different functions in modern species?
Homologous features
200
What is the biological species concept?
Species are groups of individuals that can mate and produce fertile offspring under normal circumstances.
200
What is convergent evolution?
The evolution of similar traits in very distantly related species
300
Who is the father of Evolution?
Charles Darwin
300
What are the types of selection?
Directional Selection
Stabilizing Selection
Disruptive Selection
Sexual Selection
300
What are features that no longer serve the function they do in similar species?
Vestigial features
300
What are the 2 types of isolating mechanisms?
Pre-zygotic and post-zygotic
300
What type of evolution is seen in homologous structures?
Divergent Evolution
400
Name two scientists who published in the 18th century?
George-louis Buffon
Carl Linnaeus
Erasmus Darwin
400
What is genetic drift, and what are the two types/effects?
Genetic drift: changes to allele frequency as a result of chance
Genetic bottle neck - dramatic often temporary, reduction in population size, usually resulting in significant genetic drift
Founder effect - genetic drift that results when a smaller number of individuals separate from their original population and establish a new population
400
What specific fossils show a change over time, proving evolution occurred?
Transitional Forms
400
What are the types of speciation?
Allopatric speciation & sympatric speciation
400
What type of evolution is seen in analogous structures?
Convergent Evolution
500
What scientist proposed the theory of Uniformitarianism?
Charles Lyell
500
What are the Hardy-Weinburg principle and the five conditions that must be met for no evolution?
H-W: In large populations in which only random chance is at work, allele frequencies are expected to remain constant from generation to generation.
1. No selection
2. No mutation
3. No migration
4. Large population
5. Random mating
500
What are the four observations Darwin made while on the Galapagos islands?
1. Many species of plants, birds, insects, and in some cases, reptiles
2. No native amphibians and very few land mammals
3. Many unique species found nowhere else on earth
4. Unique species most closely resemble species on the nearest continental land mass
500
If humans build a dual highway (2- 2-lane highways) what type of mechanism and type of speciation is used?
Ecological (Habitat) isolation - Pre-zygotic Mechanism
Allopatric speciation
500
Rodents are an example of what type of evolution?
Divergent evolution






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