Ch.15 vocab
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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Fossil | the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock
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Superposition | a principle that states that younger rocks lie above older rocks if the layers have not been disturbed
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Relative age | the age of an object in relation to the ages of other objects
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Absolute age | the numeric age of an object or event, often stated in years before the present, as established by an absolute dating process, such as radiometric dating
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Biogeography | the study of the geographical distribution of living organisms and fossils on Earth
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Homologous structure | anatomical structures in one species that, compared to other anatomical structures in another species, originated from a single anatomical structure in a common ancestor of the two species
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Analogous structure | an anatomical structure in one species that is similar in function and appearance, but not in evolutionary origin, to another anatomical structure in another species
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Vestigial structure | the structure in an organism that is reduced in size and function and that may have been complete and functional
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Phylogeny | the evolutionary history of a species or taxonomic group; the relationships by ancestry among species or taxonomic groups
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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