Evidence of Evolution
Modes of Evolution
Speciation
Macroevolution
Prokaryote & Protist Evolution
100
These are the remains of the organisms that lived in the past.
What are fossils.
100
This observation of Darwin's natural selection states that organisms produces many more offspring than can survive in the environment.
What is overproduction & competition.
100
This prezygotic barrier describes a situation in which two species are reproductively active at two different times.
What is temporal isolation.
100
This method is the most common dating method used in science.
What is radiometric or carbon dating.
100
This shape of prokaryotic cells is spherical.
What is coccus.
200
This is the study of the geographic distribution of species.
What is biogeography.
200
This is change in a gene pool due to random chance.
What is genetic drift.
200
This postzygotic barrier describes a situation in which the hybrids produced are considerably smaller and less productive than the parental species.
What is hybrid breakdown.
200
This is the name for the massive supercontinent that existed approximately 250 million years ago.
What is pangaea.
200
The ancient organisms often occur in extreme environments.
What are archaea
300
This aspect of comparative anatomy describes similarity in structures due to common ancestry.
What is homology.
300
This event describes a situation in which a large population is drastically reduced in size, greatly decreasing genetic variation in the population.
What is a bottleneck effect.
300
This type of speciation occurs when two populations are separated by a geographic event.
What is allopatric speciation.
300
This extinction event wiped out all of the dinosaurs except the birds.
What is the cretaceous extinction
300
This type of protists live primarily by ingesting food.
What are protozoans
400
This line of evidence investigates the early stages of development in different organisms.
What is comparative embryology.
400
This type of genetic exchange occurs between populations and can reduce genetic differences between populations.
What is gene flow
400
These types of species arise by the hybridization of two parent species, resulting in chromosomal duplications; they are common in plants.
What is a polyploid.
400
This consists of an ancestral species and all of its descendants.
What is a clade.
400
This type of slime mold has three different life stages, including a second stage that is slug-like.
What are cellular slime molds
500
This part of comparative anatomy studies remnant features that served important functions in an organism's ancestors.
What are vestigial structures.
500
This type of selection shifts the makeup of a population by selecting for one of the extreme phenotypes.
What is directional selection
500
This process is evolutionary remodeling where a structure evolves for one use, but becomes used in another way.
What is exaptation.
500
This is needed to be a control group for the ingroup in a phylogenetic tree.
What is an outgroup.
500
This species of green algae is colonial, housing future colonies within a sphere.
What is Volvox.
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