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Evolution

Evolution Living Envrionment regents review

QuestionAnswer
Adaptive Value A trait that helps an organism survive and reproduce
Evolution Long term process of organisms changing over time
Extintion the disaperance of all members of a particular species from earth
Fossil Record A collection of fossils used to understand the history of life on earth
Genetic Variation normal differences amoung individuals in a population
Geologic time earths history perserved in layers of rock
Mutation a change in the DNA. Mutations happen randomly!
Natural Selection The process by which the organisims that are best adapted to the envrionment survive to reproduce.
Overproduction Orgnaisms numbers incresing above their carrying capacity. Creates competition and causes natural selection
Theory An explination supported by many scientific observations and studies. (theory in science means something has TONS of support and if all but proven to be true)
Genetic trees a tree that shows genetic relationships. The more closly related the closer they are linked at the top of the tree
Variation Differences between individuals in a popuation.
Adaptation A characteristic that something has that helps them to survive in their environment. Adaptations are caused by random mutation, they are not caused by the envrionment
Recombination Genes mixing during sexual reproduction creates variation
Evidence Support for an idea that something is true
Created by: user-1555134
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