UNIT SEVEN - Analogous, Homologous, and Vestigial Structures

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6 Terms

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homologous structure

structures that have different mature forms in different organisms but develop from the same embryonic tissues

<p>structures that have different mature forms in different organisms but develop from the same embryonic tissues</p>
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analogous structure

structure that has the same function but different construction and was not inherited from a common ancestor

<p>structure that has the same function but different construction and was not inherited from a common ancestor</p>
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vestigial structure

structure that is inherited from ancestors but has lost much or all of its original function

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embryo

an organism in the earliest stage of development

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embryonic development

similarities in embryo development that demonstrates a relationship between different species

<p>similarities in embryo development that demonstrates a relationship between different species</p>
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comparative embryology

the study of the formation, early growth, and development of different organisms