For the Darwin
Darwins theory that described how evolution occured
What is Natural Selection?
Variations that help an organism survive and reproduce
A volcano erupting, wiping out most organsims in the area, is an example of this type of genetic drift.
What is the bottleneck effect?
The process of creating new species from older ones by evolution.
What is speciation?
Homologous structures arose from this type of ancestor.
What is a common ancestor?
The name of the ship Darwin was aboard
What is the H.M.S Beagle?
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
The change in frequency of alleles in a population due to random chance
What is genetic drift?
An event where over 50% of species on earth is wiped out in a short amount of time.
Structures that evolved independently without a common ancestor
What are analogous structures?
Name of the islands where Darwin observed the finches with different beak sizes.
What are the Galápagos Islands?
Organisms that are ___________ in their environment are the ones who survive and reproduce
What is the most fit?
This type of drift describes a couple of wolves leaving their population and starting a new one in a new area.
What is the founder effect?
Horses and donkeys are not the same species because they have gametic isolation. Their offspring, the mule, is sterile/infertile. This is an example of a __________ barrier.
What is Postzygotic barrier?
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??
The name of the book Darwin wrote on evolution.
What is "The Origin of Species?"
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?
This evolutionary mechanism is exemplified by the movement of plant pollen by the wind.
What is gene flow?
Despite living in the same area, the California red-legged frog does not mate with the foothill yellow-legged frog because they prefer different mating times of the year. This prezygotic barrier is ____________.
What is Temporal isolation?
Archaeopteryx is this type of fossil that is in-between a bird and reptile.
What are transitional forms?
Englishman who also proposed that organisms evolved from a common ancestor
Who is Alfred Russel Wallace?
What is the major cause of variation found in individuals of a population
What are mutations?
***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?
On ________ of different species, similar structures may or may not disappear as the species matures, which is evidence of a common ancestor
What are embryos?