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Theory of Evolution

QuestionAnswer
Evolution the process of changing over time
Adaptation a heritable characteristic that increases an organisms fitness
Fitness An organisms ability to survive and reproduce
Fight for Existence more organisms are born then can survive and must compete
Variation individuals naturally vary and those that are better suited survive
Biogeography study of where organisms live now and where their ancestors lived in the past
Comparing Anatomy structures that are shared across many species but have modified functions
Biochemical all organisms contain a universal genetic code
Species group of individuals capable of interbreeding
genus refers to a group of similar species
Dichotomus Key uses a series of paired statements to identify an organism
Speciation formation of a new species
Reproductive Isolation Behavioral, Geographic, and Temporal
Phylogeny the evolutionary history of lineage
Current Evolution occurs, unsure of how it works
What do similar species have in common? Similar habitats around the world
What was unusual about fossils of extinct organisms? They were similar to many living organisms
Fossil The preserved remains of an organism
Natural Selection The process by which individuals that are better adapted to their environment are more likely to survive
Mold A fossil formed when an organism buried in sediment dissolves, leaving a hollow area
Cast Copy of the shape of an organism that made the mold
Fossil Record The entire set of fossils that scientist have ever found
Gradualism The theory that evolution occurs slowly but steadily
Relative Dating Method of dating in which one organism is determined to be older than the other. It is based on the layers of rock in which the organisms are found
Created by: allengautier
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