A collection of carefully reasoned hypotheses about how evolutionary change occurs.
100
Groups of organisms in a certain area that can breed together is known as?
A population
100
A term similar to artificial selection that occurs in nature is called?
Natural selection
100
What is it called when a new species is formed?
Speciation
100
When one species give rise to many different species it is called?
Adaptive radiation
200
What is artificial selection?
Found in the farming industry the most, choosing the parents of offspring to get desired outcome. Another name for selective breeding.
200
A population of organisms and their offspring share a common group called?
A gene pool
200
Explain "Survival of the fittest".
Those well adapted to the environment will survive, those who are not will not survive.
200
What event/process can lead to speciation? (galapagos island example)
Reproductive Isolation
200
What is divergent evolution?
When species come from one common ancestor and become different
300
Why when Darwin found out that the Earth was older than most people thought it helped prove his theories?
Because it made more sense that organisms all evolved from a common ancestor. It proves that there was enough time for these changes to occur and supported evolutionary change.
300
What is an example of genetic variation within humans?
Eye color, height, hair color, etc
300
What is a genetic definition for evolution(in regards to a population/alleles)?
Evolution is any change in the relative frequencies of alleles in the gene pool of a population.
300
What is a niche?
The combination of an organisms "Profession" and the place in which it lives.
300
What is convergent evolution?
The evolution of different organisms that become more similar.
400
What is the key factor in artificial selection occurring?
Human intervention
400
What forms the basis of natural selection? (causes random variation)
genes
400
What is a species?
A group of similar looking(though not identical) organisms that breed with one another and produce fertile offspring in the natural environment.
400
What wold happen if two different species occupy the same niche?
There will be increased competition, one species will prevail and one will fail.
400
That random change in the frequency of a gene within a species is called?
Genetic Drift
500
What was one false theory that Lamarck have about evolution?
Desire to change (inborn urge), use and disuse (dont use it, you loose it), Passing on acquired traits (passing on non-genetic traits)
500
What causes phenotypic variation?
Change in genes (random variation).
500
Scientist have learned that new species are usually formed when species are?
Isolated or seperated
500
When species are well adapted to their environment and have very little competition what happens?