EOC STAAR
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Genetic Drift | An evolutionary mechanism in which allele frequencies change in a population
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| Recombination | Another source of heritable variation that occurs for two main reasons: independent assortment and crossing-over.
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| Gene Flow | When the genes of one population flow to a different population.
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| Fossils | What are preserved traces or remains of living organisms for the past
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| Vestigial Structures | Structures on an organism are degenerated and, or are nonfunctional structures
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| Homologous Structures | Structures that are similar in related organisms which were inherited from a common ancestor
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| Analogous Structures | Structure that is the same in function but different in structure, and evolved independently
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| Molecular Homologies | Evidence of evolution that has similar stretch of genetic material and/or proteins between different organisms
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| Biogeography | This is the study of the distribution of species, organisms, and ecosystems through geological time
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| Stabilizing Selection | most common form of natural selection in which organisms with extreme expressions of a trait are removed. Can be expressed on a graph
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| Directional Selection | Shift of population toward an extreme version of a beneficial trait. Can be expressed on a graph
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| Disruptive Selection | Process by which individuals with average traits are removed, creating two populations with extreme traits. Can be expressed on a graph.
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| Natural Selection | Process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype.
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| Evolution | The process through which species change over time.
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| Species | Groups of actually or potentially interbreeding populations, which are reproductively isolated from other such groups.
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| Adaptation | Process by which an animal or plant species becomes fitted to its environment; it is the result of natural selection's acting upon heritable variation.
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| Taxonomy | A hierarchical system for classifying and identifying organism
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| Common Ancestor | The most recent ancestral form or species from which two different species evolved.
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Created by:
melissa1334
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