When a deer wanders from one population to another this is an example of __________ ____________.
What is gene flow?
100
Category that includes Natural selection, mate choice, migration, mutation and genetic drift
What is microevolution?
100
The classic bell shaped curve.
What is a normal distribution?
100
The dodo bird was killed off completely in Australia. This is an example of _________.
What is extinction?
200
Descent with modification.
What is evolution?
200
When a rabbit has many babies but not all will survive, this is an example of ________.
What is overproduction (or differential reproduction)?
200
Can form when a group of individuals remains isolated from the rest of its species long enough to evolve different traits.
What is speciation?
200
The "bell shaped curve" becomes narrower.
What is stabilizing selection?
200
The bones in a bat's wing are similar to the bone in a cat's leg. This is an example of __________ structure.
What is a homologous structure?
300
Differences between individuals of the same species.
What is variation?
300
Jaguars with larger teeth are able to eat shelled reptiles and survive better. This is an example of ________.
What is adaptation?
300
Species slowly but constantly changing over time.
What is gradualism?
300
When the most common trait suddenly becomes the least successful and both extremes begin to do well.
What is disruptive selection?
300
The wing of a fly and the wing of a bird are an example of an _________ structure.
What is analogous?
400
A well-tested concept that explains a wide range of observations.
What is a scientific theory?
400
Some garter snakes are slower but have higher resistance to newt poison while others are faster but less tolerant. This is an example of _________ in the population of garter snakes.
What is variation?
400
The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals
What is natural selection?
400
When all the giraffes grew taller over time as food sources became higher.
What is directional selection?
400
Both dolphins and sharks have evolved similar tail fins. However, dolphins are mammals and sharks are fish. This is an example of _________ evolution because they evolved similar traits.
What is convergent?
500
Variation, Overpopulation, Heritability, and Adaptation
What are the 4 postulates of Natural Selection?
500
If a flood kills off a large, random portion of a population this is an example of ________ __________.
What is genetic drift?
500
After the drought on the Galapagos, the Grants observed that the following generation of finches had a higher average beak depth.
What is directional selection?
500
If a beetle evolves alongside a plant species it lives in, this is an example of ________.