When new species arise without geographic isolation
What is sympatric speciation
100
the change in ______ due to chance is genetic drift
What is gene pool
200
Where Darwin traveled
What is Galapagos Islands
200
the differences in each person are known as
Genetic Variability
200
A bat's wing and a fly's wing have the same function What type of function are they?
What is analogous structure?
200
What is caused my geographic isolation
What is allopatric speciation
200
does genetic drift increase or decrease diversity?
What is decrease
300
Inherited characteristic that increases an organism's chance of survival
adaptation
300
the change in the gene pool of a population over time
What is Evolution
300
A scientist who studies fossils to determine when life occurred, relationships among organisms, and the history of organisms on earth.
What is paleontologist
300
What are the two types of geographic isolation?
What is sympatric speciation and Allopatric speciation
300
What are the two types of genetic drift
What is bottle neck and founder effect
400
A change in allele frequencies as a result of the migration of a small subgroup of a population?
What is founder effect
400
What is the main process of sexual reproduction that creates variation?
What is meiosis
400
Remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species
What is vestigial structure
400
What is the condition where a cell has more than 2 complete sets of chromosomes?
What is polyploidy
400
When a population goes through a bottleneck,
a.
genetic drift is likely to occur.
b.
mutation rates increase.
c.
extinction rates decrease.
d.
natural selection decreases in intensity.
What is A
500
What form of natural selection in which the entire curve moves; occurs when individuals at one end of a distribution curve have higher fitness than individuals in the middle or at the other end of the curve
What is directional selection
500
What two processes cause variation to occur?
What is mutation and sexual reproduction
500
Convincing scientific evidence now indicates that:
a) evolution has occurred in the past but no longer is occurring
b) evolution is now occurring, but it did not occur in the past
c) evolution is occurring now
What is C
500
What is a species?
a. Group of organisms that maintain a distinctive set of adaptations in nature that consists of an evolutionary dependent population or group of populations
b.Group of organisms that maintain a distinctive set of attributes in nature that consists of an evolutionary independent population of group of populations
c. Group of organisms that maintain a distinctive set of adaptations within their environment chi consists of evolutionary independent populations of groups of populations
What is B
500
Frequency of a recessive allele is 0.4. What is the percentage of the population heterozygous for the allele?