For the Darwin
Darwins theory that described how evolution occured
What is Natural Selection?
Variations that help an organism survive and reproduce
The change in frequency of alleles in a population due to random chance
What is genetic drift?
The process of creating new species from older ones by evolution.
What is speciation?
Structures that evolved independently without a common ancestor
What are analogous structures?
The name of the ship Darwin was aboard
What is the H.M.S Beagle?
Organisms that have this characteristic in their environment are the ones who survive and reproduce
What is the most fit?
A volcano erupting, wiping out most organsims in the area, is an example of this type of genetic drift.
What is the bottleneck effect?
An event where over 50% of species on earth is wiped out in a short amount of time.
Homologous structures arose from this type of ancestor.
What is a common ancestor?
The name of the essay Darwin wrote on evolution
What is "on The Origin of Species"?
Major cause of variations found in populations of species
What are mutations?
This type of mechanism describes a couple of wolves leaving their population and starting a new one in a new area.
What is the founder effect?
What is temporal isolation?
Similar structures on ________ of different species that may disappear as they mature are evidence of a common ancestor.
What are embryos?
Name of the islands where Darwin observed the finches with different beak sizes.
What are the Galápagos Islands?
A drought causes all the grass in an area to turn yellow. Natural selection would then act on a group of green and yellow grasshoppers, causing the ______ grasshoppers to be selected for, while the other got selected against.
What are yellow grasshoppers?
This evolutionary mechanism is exemplified by the movement of plant pollen by the wind.
What is gene flow?
Horses and donkeys are not the same species because their offspring, the mule, is sterile/infertile. This is an example of a __________ barrier.
What are Postzygotic barriers?
The pelvic girdle is a bone structure used to connect leg bones to the body. This structure is also found in snakes and is a ________ structure for them.
What are vestigial structures?
Englishman who also proposed that organisms evolved from a common ancestor
Who is Alfred Russel Wallace?
The natural selection type exemplified by a population of red, pink, and white birds evolving to be mainly white birds and red birds.
What is disruptive selection?
***DAILY DOUBLE***
The effect of gene flow on the population of species
What is increased biodiversity/genetic diversity?
Speciation that occurs in the same area due to temporal, behavioral, gametic, or mechanical isolation.
What is Sympatric speciation?
Archaeopteryx is this type of fossil that is in-between a bird and reptile.
What are transitional forms?