Random
Darwin proposed based on his observations
What is natural selection?
Changes in allele frequencies on a small scale
What is microevolution?
When alleles are transferred between populations due to immigration
What is gene flow?
The first details relatedness, but the second also incorporates time
What are cladograms and phylogenetic trees?
When multiple niches are available and organisms evolve separately to fill those niches to avoid competition
What is adaptive radiation?
A group of interbreeding populations that can produce healthy, fertile offspring.
What is a species?
How genetic variation is preserved in a population
What is the heterozygote advantage?
When a cataclysm occurs the remaining allele frequencies are different than they were before the event
What is bottleneck effect?
This represents speciation events and common ancestors
What is a node?
When the anoles had different colored dewlaps
What is an example of behavioral isolation?
What is a pre-zygotic barrier?
What is reproductive isolation?
The result of chemical evolution
What are organic molecules (AA)?
Must be maintained in order for a population to be in Hardy- Weinberg Equilibrium. Hint-5
What are no natural selection, random mating, no migration, no mutations, large population size?
When environments are similar they lead to the development of similar traits in two different lineages and the traits are called this
What is convergent evolution and analogous traits?
This lineage is the least closely related member of the clade
What is the outgroup/basal taxa?
The fur tree's pollen (sperm) cannot physically attach to the pine tree's cone (egg)
What is an example of mechanical isolation?
What is a pre-zygotic barrier?
What is reproductive isolation?
When the extremes of a trait are both equally selected for, this occurs
What is disruptive selection?
If 840 out of 1000 individuals have the dominant trait, how many individuals are homozygous dominant assuming HW equilibrium?
360
These structures exist between organisms who share those types of ancestors
What are homologous traits and common ancestors?
These two types of evidence can be used to create cladograms
What are molecular and morphological?
This keeps horses and donkeys from being considered the same species
What is reduced hybrid fertility?
What is a post-zygotic barrier?
Two theories of eukaryotic origins.
What are the infolding hypothesis and endosymbiosis hypothesis?
Two ideas for the rate of evolution
What are gradualism and punctuated equilibrium?
This is how we know evolution happens. (Hint: Must include 5)
What are the fossil record, comparative cytology, comparative anatomy, embryonic structures, biochemical, direct observation, and biogeography.
Final Jeopardy
Create a cladogram for the following (I'll show you on a separate page)
(teacher discretion)
A population of salamanders has seen some of the population moving east and some moving west.
What is allopatric speciation?