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Divergent Evolution species that were once a common ancestor diverge, or become increasingly different.
Cladogram Shows particular characters that are either present, or not present, in the organisms being compared.
Geographic Isolation A new species evolves because a physical barrier separated the population . over time, the divided populations may no longer interbreed, even if reunited.
Adaptive Radiation when an ancestral species evolves into an array of species to fit a number of diverse habitats. is more common on the islands.
Homologous Structures Structural features with a common evolutionary origin
Vestigial Structure A body structure in a present-day organism that no longer serves its original purpose, but was probably useful to an ancestor.
Camouflage Adaption to help an organism blend with its surroundings.
Analogous Structure The body parts of organisms that do not have a common evolutionary origin but are similar in function
Convergent Evolution Unrelated species occupy similar environments and evolve similar traits.
Mimicry One species physically resembles another
Adaption A structure, behavior, or internal process that enables an organism to respond to environmental factors and live to produce off springs.
Reproductive Isolation Formerly interbreeding organisms can no longer mate and produce offsprings.
Punctuated Equilibrium hypothesis that speciation occurs relatively quickly, in rapid bursts, with long periods or genetic equilibrium in between.
Gene pool all the allels of a populations genes Example.. Bb
Mutation any change or random error in the dna sequence
Artificial Selection involves people taking charge of selection to produce new, better varieties or various species. manipulate breeding to produce more desirable offspring
Natural Selection any advantage that allows an organism yo get more food, survive and reproduce . the organisms best suited to survive in their environment have a greater chance or passing their traits on the next generation
Evolution The gradual change in a species over time. CANNOT happen to an individual organism
Created by: Lovin'g