Evolution
an example of mimicry?
various responses
What is Analogous Structure?
Body parts that share a common function, but not structure.
when mating occurs but zygote does not grow into embryo
hybrid inviability (post zygotic speciation)
an example of an animal that exibits hybrid sterility
mule
What is Genetic Drift?
Random change in allele frequencies that occurs in small population.
give an example of adaptive radiation
various responses
What is Homologous?
Structures in a different function/species but are similar because of common ancestry.
What is Speciation?
The formation of new and distinct species in the course evolution.
What is Divergent Evolution?
When two or more species share a common ancestor become more different overtime.
What is Prokaryote?
An organism without a nucleus or membrane bound organelles.
pre-zygotic speciation where the issue is timing
temporal
What is a Vestigal Structure?
A structure that is present in an organism but no longer serves its original purpose (ex; wisdom teeth, human tailbones)
What is Species?
A group of similar organisms that can breed and produce fertile offspring.
What is Convergent Evolution?
Unrelated organisms independently evolve similiarities when adapting to similiar environments.
What is Eukaryote?
An organism with a nucleus and membrane bound organelles.
where a barrier prevents mating
What is Directional Selection?
When natural selection favors one of the extreme variations of a trait.
What is Gene Flow?
Movement of alleles from one population to another.
What is Punctuated?
When species evolve during short periods of rapid change.
speciation that occurs in the same area or habitat
sympatric speciation
What is Natural Selection?
Natural selection is a process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals.
What is Disruptive Selection?
When natural selection favors both extremes of phenotype range.
What is Adaption?
A trait that helps an organism survive and reproduce.
What is Genetic Pool?
Combined genetic information of all the members of a particular population.
What is Fitness?
How well an organism can survive and reproduce in its environment.