Evolution
Natural Selection
Adaptations
Mechanisms of Evolution
Patterns of Evolution
100
Biological ______ is the process that results in heritable changes in a population spread over many generations
What is evolution?
100
Individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
what is natural selection?
100
the ability of an adaptations in different organisms that share a common habitat.
What is fitness?
100
what are the five mechanisms of evolution?
natural selection, gene flow, mutations, genetic drift, artificial selection
100
The process by which an ancestral species gives rise to a number of new species that are adapated to different environmental conditions, and are less alike. (related species become more different over time).
What is divergent evolution?
200
How often a form of a gene appears in a gene pool
what is allele frequency?
200
The most important influence to evolution?
Natural Selection
200
Changes within the cells/tissues of an organism that increases their fitness
physiological adaptation
200
Change in DNA sequence that affects genetic information. Some are beneficial, some are not.
Mutations are natural!
They increase genetic diversity in populations.
What are Mutations?
200
These two species both have fins and streamlined bodies for swimming, yet they don't share common ancestry. This is an example of what kind of pattern of evolution?
What is convergent evolution?
300
A group of organisms of the same species that live in specific areas
what is a population?
300
_____ for resources drives natural selection. Individuals who are most successful will have better access to those resources, and therefore more opportunities to reproduce.
what is competition?
300
If an adaptation improves an organism’s fitness, you will see the frequency of the allele for that trait _________ in the population over time =_________
what is increase, evolution ?
300
This is an example of what mechanism of evolution? 
what is gene flow?
300
flowering plants and pollinators have developed co-adaptations that allow flowers to attract pollinators, and insects and birds have developed specialized adaptations for extracting nectar and pollen from the plants. This is an example of what ?
what is coevolution?
400
individual ____ do not evolve
what are organisms?
400
Changes in allele frequency, changes to genes by mutations, new individuals with new genes enter a population.
what is genetic variation?
400
Behaviors exhibited by a population of organisms that increases their fitness
behavioral adaptation
400
This is an example of what mechanism of evolution?
what is genetic drift?
400
the number of alleles in a population?
What is gene frequency?
500
“In fact, evolution can be precisely defined as any change in the frequency of alleles within a ______ from one generation to the next.”
what is gene pool
500
Certain alleles or traits increase survival rates (long neck allows giraffes to eat plants other species cannot reach).
What is inheritance of successful traits?
500
What are the three types of adaptations?
Structural, behavrial, physiological
500
Over time humans have used selective breeding the enhance the size and color of corn. What is this an example of?
what is artificial selection?
500
Analogous Structures are evidence of what type of evolution?
what is convergent evolution?