Natural Selection
Organisms with the best traits live longer and reproduce.
what is natural selection?
A trait that helps an organism survive it's environment
What is an Adaptation?
The elimination of a species
What is Extinction?
The study of embryo development
What is Embryology?
Any change in the DNA sequence
What is mutations?
What is Fitness?
A structure that has no function anymore
What is a vestigial structure?
What is speciation?
The study of prehistoric life through the fossil record
What is Paleontology?
The movement of genes into and out of a population
The differences in physical traits of organisms caused by random mutations and genetic recombination.
A number of different species arise from one common ancestor
What is Divergent Evolution?
The evolution of two organisms together
What is Co-evolution?
A similar structure that evolved independently in different organisms due to serving similar purposes
What is an analogous structure?
What is Genetic Drift?
What is Decent with modification?
Similar structures that suggest evidence of common ancestry
What is a homologous structure?
Slow constant changes over a long period of time
What is gradualism?
What is Morphology?
The selection of traits not based on fitness but without them your genes are not passed down because you cannot reproduce
What is sexual selection?
When there are no changes in the allele frequencies in a population over time.
What is Genetic Equilibrium?
When unrelated species evolve similar characteristics because they live in similar environments
Bursts of change followed by periods of stability
What is Punctuated Equilibrium?
The analysis of DNA and proteins to compare similarities between organisms
The organism that is more fit survives and reproduces more offspring
What is Natural Selection?