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#7- Evolution

Unit 7- Diversity and Evolution

TermDefinition
Evolution the process in which inherited characteristics within a population change over generations such that new species sometimes arise
Charles Darwin English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. He developed a theory of natural selection that led to the development of the modern day Theory of Evolution.
Artificial Selection the human practice of breeding animals or plants that have certain desired traits
Natural Selection the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals
Variation the occurrence of hereditary or nonhereditary differences between different individuals of a population
Mutation a change in the structure or amount of the genetic material in an organism; it can have a positive effect, negative effect or no effect
Adaptation a characteristic that improves an individual’s ability to survive and reproduce in a particular environment
Extinction the death of every member of a species
Fossil the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock
Fossil Record the history of life in the geologic past as indicated by the traces or remains of living things; all fossils that have been discovered
Transitional Fossils any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group
Common Ancestry the most recent species from which two species have evolved; an ancestor that two organisms have in common
Created by: stukejr
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