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Unit5VocabRM

QuestionAnswer
Absolute (radiometric) dating method of determining the age of a fossil using radioactive atoms
Adaptation any structure or behavior that allows a population to survive in their environment
Adaptive radiation evolutionary pattern in which many species evolve from a single ancestor
Analogous different structures with common functions
Convergent evolution process by which different species become more alike when living in similar environments
Divergent evolution process by which similar species becomes less alike when living in different environments
Evolution gradual change in a species over time
Extinction the death of every member of the species
Fossil evidence of a organism that lived in the past
Homologous similarly built structures with different functions
Natural selection when organisms survive, reproduce, and pass favorable traits to the next generation
Relative dating a method of determining an estimated age of a fossil within layers of the earth
Speciation process by which new species are formed
Strata layers of rock (sedimentary rock)
Vestigial a body structure that at one time was very useful, however now it has limited functions
Competition organisms battle for resources in their population and against other populations
Common ancestry idea organisms closely related to each other had a common ancestor
Invertebrate organisms that does NOT have a backbone(spine); evolved before vertebrates
Vertebrate organisms that DOES have a backbone(spine); evolved after invertebrates
Mammal animal that has hair and produces milk for young; last to evolve
Variation difference in a particular trait within a population (ex. finch beaks-size and shape;marine iguanas- color)
Created by: rm19141
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