Ideas of Evolution
Agents of evolution
Agent of E pt 2
Barriers leading
to Speciation
100
The Greek philosopher ___ claimed that every organism was an example of a perfect essence or type created by God and that these types were unchanging. "Typological thinking"
Who is Plato ?
100
The selection of mates other than by chance
What is non-random mating
100
what is 2+2
4
100
Behavioral
What is Pre Zygotic?
100
Hybrid inviability
What is Postzygotic?
200
_____ proposed that change in species through time does not follow a linear, progressive pattern but instead is based on variation among individuals in populations.
Descent with modification
Who is Darwin ?
200
the process whereby organisms better adapted to their environment tend to survive and produce more offspring
What is natural Selection?
200
what is Cool looking monkey
200
Mechanical
What is Prezygotic?
200
Gametic
What is Prezygotic?
300
_______ ordered the types of organisms into a linear scheme called the great chain of being. In this chain species were organized into a fixed sequence based on increasing size and complexity, with humans at the top.
Who is Aristotle?
300
Extreme, sudden changes to the gene pool as a result of chance
What is Genetic drift?
300
What are the 5 agents of evolution
mutation
non-random mating
gene flow
genetic drift
natural selection.
300
Hybrid breakdown
What is postzygotic ?
300
Hybrid sterility
What is Post zygotic?
400
_____ proposed that Individuals change in response to their environment and then pass on those changes to their offspring
Who is Lamarck ?
400
Most _____ are either neutral and do not result in an individual organism's phenotype, or harmful mutations, which may be lethal, causing death.
What are Mutations?
400
When a few individuals colonize a new habitat, the smaller the founding population, the less likely its gene pool will be representative of the original population's genetic makeup
What is Founders affect?
400
Temporal
What is Prezygotic ?
400
Habitat
What is Prezygotic?
500
When an individual migrates, alleles move from one population to another causing gene flow to occur
What is Gene flow?
500
A dramatic, often temporary reduction in population size. When this form of genetic drift occurs, a very small sample of alleles survives to establish a new population. Again, chance alone will determine which individuals, and which alleles, will survive
What is Bottlenose effect?
500
Name all Prezygotic barriers and be able to explain each one
Temporal: time of matting season
Habitat: location
Behavioral: differences in matting calls or ways of attraction. (think happy feet)
Mechanical: Rabbit and horse no no no :(
Gametic: When gametes don't attract
500
Name all and explain the post Zygotic barries
Hybrid inviability: simply do not survive past the embryonic stages;
Hybrid sterility: creation of a hybrid that is sterile and unable to produce offspring
Hybrid breakdown: generations are infertile