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Related Flashcards
Related Topics
Cards In This Set
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Adaptation
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Characteristic well suited for survival or reproductive success
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Allele
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Specific form of gene
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Allele Frequency
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The likeliness in which the gene will show up
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Allopatric speciation
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Formation of new species due to geographic isolation
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Acquired Traits
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Traits required to be best suited for current environment. **a trait acquired after birth .. not genetically linked - almost environmental**
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Analagous Structures
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Structure performs same function as others but is not similar in structure
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Artificial Selection
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Direct breeding between two parents with a designed trait to make it more common in offspring
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Behavioural Isolation
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Species have distinct ways of finding a mate
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Biogeography
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Study of geographic distribution of organisms based on living species and fossils
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Bottleneck effect
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Mass reduction in population causing population to be almost genetically identical
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Catastrophism
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Theory that pattern of fossils accounted for by a series of catastrophies that wiped the earth
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Cumulative Selection
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Directional Selection
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Selection favours increase or decrease in the value of a trait from current population average
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Disruptive Selection
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Selection favours two or more variations of trait that differs from current population
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Ecological Isolation
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