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Vocabulary
Natural Selection
Lines of Evidence
Miscellaneous
100
A group of individuals of the same species living in the same place at the same time
Population
100
This scientist was the first to publish a theory of natural selection.
Charles Darwin
100
These preserved remains of long-dead organisms give us a physical record of the history of life on Earth
fossils
100
What is one way to introduce new alleles into a population?
Mutation or migration
200
All of the available alleles in a population
Gene Pool
200
Fill in the blank to complete the first condition of natural selection: There is _____________________ in a population
Variation
200
This special kind of fossil directly shows us the relationship between two different groups of organisms
Transitional Fossils
200
What is the difference between artificial selection and natural selection?
Artificial selection is controlled by humans, natural selection is not
300
How common each allele is in the population
Allele Frequency
300
Fill in the blank to complete the second condition of natural selection: Variation is ________________________
Heritable (or genetic, or passed down from parents to offspring)
300
Why does the genetic code suggest that all life on Earth shares a common ancestor?
It is universal, or all organisms use the same code
300
In a population of cartoon sponges, there are two different alleles for body shape. "S" is the allele for square body and "s" is the allele for round body. In 2000, the frequency of the "S" allele was 75% and the frequency of the "s" allele was 25%. In 2010, the frequency of the "S" allele was 45% and the frequency of the "s" allele was 55%. What can you say about this population from this information?
It's evolving
400
Change in allele frequency in a population over time
Evolution
400
Fill in the blanks to complete the third condition for natural selection: This variation causes some individuals to _________________ and ________________ better than others.
survive and reproduce
400
The femur of a modern whale is an example of what type of structure?
Vestigial Structure
400
What is the difference between the way scientists use the word theory and the way other people use it?
In science, a theory is supported by evidence
500
A group of organisms that is not mating or exchanging information with any other group
reproductive isolation
500
Fill in the blank: Natural selection leads to a change in a ____________________________ over time, not a change in individual traits
population
500
The similar bone arrangements in the arms/hands of different types of mammals is an example of what kind of structure?
Homologous structures
500
How did geology inform and support Darwin's theory of natural selection?
It showed that the Earth was billions of years old, which meant that there was plenty of time for natural selection to produce all of life on Earth