Show:
evidences
Natural Selection
Species
Vocab
wild card
100
This is used to determine the relative age of the fossils
What is depth of the rock layer
100
The theory of natural selection was developed by
Who is Charles Darwin
100
a characteristic that allows an organism to fit in better with its environment is called
What is an adaptation
100

What are similarities in DNA an indication of?

What is a common ancestor?

100
Different beaks on birds results from different.....
What is food sources
200
The most modern and accurate way to determine evolutionary relationships
What is biochemical/DNA
200
These are the islands where Darwin developed his theory
What are the Galapagos islands
200
This rate of gene flow results in a high rate of speciation
What is low gene flow
200
Few individuals of a species colonize a new island. this is called
What is founders effect
200
A trait with a high survival advantage will do what in the population over time
What is increase
300
This type of structure is one that is no longer used, but served a purpose to the ancestors
What is vestigial structure
300

This is the last step of natural selection.

What is organisms with beneficial traits will reproduce and pass those traits on.

300
This type of evolution occurs when two similar organisms develop into two different species
What is divergent evolution
300

This is a fossil that is created when minerals fill an empty space before turning to stone.

Permineralization

300
This is the ultimate source of variation for organisms
What is a mutation
400
This type of structure shows a common ancestor but not a shared function
What is homologous structure
400
The rate of natural selection increases when this also increases
What is pressure from environmnet
400
When two dissimilar species become more alike due to their environment is called
What is convergent evolution
400

When a population favors one extreme trait leading to a shift in the population toward that trait over time.

What is directional selection?

400
this term is used when a chance event occurs and drastically reduces the population of organisms
What is bottleneck effect
500
Studying developmental stages provides this type of evidence
What is embryology
500
This is the first step of natural selection
What is overproduction- organisms will produce more offspring than can survive
500

What method uses the amount of radioactive material to determine the actual age of the fossil?

What is absolute dating?

500
Type of selection that favors both extremes of a trait
What is disruptive selection
500
What level of diversity is needed for healthy populations
What is high level