Any inherited trait that increases an organism's chance of survival is known as this.
What is an adaptation?
Finding fossils in different rock layers in the same place allows us to do this
Whatis relative dating?
When a population becomes very small it is known as a ________________
What is a (population) bottleneck?
This term refers to the availability of different traits and alleles within a population.
What is variation?
The concept that organisms who are the best suited to their environment will be the most successful
What is survival of the fittest?
Unrelated species with similar adaptations but in different parts of the world are similar due to this type of evolution.
What is convergent evolution?
Lyell said that THIS is the key to the past
What is the present?
The concept that members of each species compete regularly for food, space, and other necessities is known as this.
What is the struggle for survival or competition?
What is The Galapagos Islands?
Change in the gene pool due to a random event, not evolution
What is genetic drift?
Everything an organism is and everything it does
What is a niche?
Type of macroevolution that leads to the formation of new species
What is speciation?
The FAILED argument that the human eye is too complex to have evolved
What is irreducible complexity?
Speciation requires isolation.
The type of isolation where organisms are in different locations.
What is Geographic Isolation?
Speciation requires isolation.
The type of isolation where organisms use different mating rituals
What is behavioral isolation?
Speciation requires isolation.
The type of isolation where organisms reproduce at different times
What is temporal isolation?
Evolution can lead to different types of selection.
The type of selection where the average organism is favored.
What is stabilizing selection?
Evolution can lead to different types of selection.
The type of selection where either larger or smaller organisms are favored (not both, one or the other)
What is directional selection?
Evolution can lead to different types of selection.
The type of selection where both extremes are favored over the average (big AND small for instance)
What is disruptive selection?