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Related Flashcards
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Cards In This Set
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What is microevolution?
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Allele frequency changes in a population through genetic drift
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What is macroevolution?
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Evolutionary change on a species level
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What is arithmetic progression?
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Population growth
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What is geometric progression?
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Food growth
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How did malthus' ideas influence darwin?
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Helped with the development of natural selection
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Why did darwin delay the publication of the origin of species?
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It was such a radical idea he knew it would cause trouble
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What is uniformitarianism and how does it relate to the process of Natural selection?
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Operations of earth are uniform and acted the same in the past as the present. -changing environment
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How do arithmetic and geometric progression relate to natural selection?
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Lack of resources causes competition
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Geospiza fortis -type of selection-what influenced beak size?-how did it relate to rainfall?
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Medium ground finch-directional-seed size-lack of rainfall = lack of seeds = less birds
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What are the conditions necessary for Natural Selection?
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Population variation, variation is genetically heritable, more offspring produced than can survive, survival and reproduction are nonrandom
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What are agents of evolutionary change?
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Gene flow, mutation, genetic drift, non-random mating
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What is fitness?
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Ability to produce offspring
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What is artificial selection?
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Selective breeding
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How does natural selection produce major change?
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Natural selection causes competition
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What is homology?
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The study of likeness. reflects any common ancestors. pattern of similarities.
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