Evolution Flashcards
Amino Acid Sequencing
Using DNA comparisons to evolutionary link species
Embryology
Animals that are closely related will look similar during their early development
Homologous Structures
The same structure is present in different animals
Natural Selection
The process by which all organisms change over time to better adapt of their environment
Vestigial Structures
A body structure that has no function but may have been used by an ancestor
Rock layers, the oldest and least complex organisms are at the…
Bottom
The youngest layer and the most complex organisms are at the…
Top
The closer the number is or the lower it is to the organism you are comparing…
The more related they are
Natural Selection
Survival of the Fittest
Punctuated Equilibrium
Sharp and sudden changes
Gradualism
Changes over time
Evolution occurs when one of these things happen.
Small population, Non-random mating, Mutation, Movement/Migrating, and Adaptations
What is genetic variation?
The difference in DNA sequences between individuals within a population
What is gene flow?
Transfer of genetic material from one population to another
Hardy Weinberg
No mutations, population is large, mating is random, no immigration or emigration, and no natural selection
