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Biology Evolution

TermDefinition
Charles Darwin Father of evolution, did research on the Galapagos, natural selection
Lamarck's idea Law of use and disuse
Galapagos Islands 16 Islands, 1000 km west of South America, part of Ecuador
Natural Selections Survival of the fittest. Acts on a range of phenotypes
Evolution Creating new phenotypes. Population's genes and frequencies change over time.
Gene Pool All the alleles in a population
Reproductive Isolation When populations can't breed due to geographic separation
Gradualism Gradual change overtime leading to new species
Adaptation Inherited characteristics that increases an organisms chance of survival
Camouflage Defense mechanism for an organism to blend in with its environment
Mimicry Species is harmless resembling something harmful
Natural Variation Differences among individuals of a species
Artificial Selection Selective breeding to enhance desired traits among stock or crops
Divergence Accumulation of differences among 2 groups of the same species
Speciation The formation of a new species
Punctuated Equilibrium A model of evolution in which periods of rapid change are separated by no change
Macroevolution Long time scale events that create or destroy species
Microevolution Short time scale events. generation-to-generation
Homologous Structures Related structures that are inherited from a common ancestor
Vestigial Structures Structures that are present in an organism, but serve no apparent use
Analogous Structures Evolved independently in 2 living organisms. Structures not the same. not inherited by the same ancestor.
Created by: 24legleston
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