Evolution
This is the change in allele frequencies in a population over time.
What is evolution?
A trait that increases an organism's chance of survival and reproduction.
What is an adaptation?
The concept that all life shares a common origin.
What is common ancestry?
The process by which individuals with advantageous traits survive and reproduce more successfully.
What is natural selection?
This type of evidence uses fossils to schow changes in species over time.
What is the fossil record?
The preserved remains or traces of organisms from the past.
What are fossils?
This term describes traits that no longer serve a useful function.
What are vestigial traits?
This molecule is commonly used to compare genetic similarity.
What is DNA?
Individual best suited to their environment survive and reproduce.
What is survival of the fittest?
This term describes the formation of new species.
What is speciation?
This scientist proposed evolution by natural selection.
Who is Charles Darwin?
This is the ability of an organism to survive and reproduce.
What is fitness?
This is a shared trait inherited from a common ancestor.
What is homologous trait?
Natural selection leads to this.
What is adaptation?
A mutation that has positive affect on an organism it will likely do this in frequency.
What is increase?
This mechanism of evolution involves random changes in allele frequencies, especially in small populations.
What is genetic drift?
This adaptation allows organisms to blend into their environment.
What is camouflage?
This diagram shows evolutionary relationships.
What is a phylogenic tree?
If a trait does not improve survival, it is likely to become this over time?
What is less common? or What is eliminated?
This term describes differences among individuals.
What is variation?
This type of evolution results in unrelated species developing similar traits.
What is convergent evolution?
Behavioral, physiological, and structural are all examples of this.
What are types of adaptations?
The study of embryos to compare developmental stages across species is called this.
What is comparative embryology?
This occurs when environmental conditions favor one phenotype over another.
What is selection? or What is natural selection?
These structures have similar anatomy but different functions, indicating shared ancestry. An example is the bat wing and the human arm.
What are homologous structures?