PSSA vocab unit 6
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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| Evolution | A process of change that explains why what we see today is different from what existed in the past; Biological evolution is a change in hereditary characteristics of groups of organisms over the course of generations
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| Extinction | The complete elimination of a species from the earth
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| Endangered species | A species that is in danger of extinction throughout all or a significant portion of its range
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| Equilibrium | The ability of an ecosystem to maintain stability among its biological resources (e.g., forest, fisheries, crops) so that there is a steady optimum yield
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| Sustainability | The ability to keep in existence or maintain. A sustainable ecosystem is one that can be maintained
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| Succession | The series of changes that occur in an ecosystem with the passing of time
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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.
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.
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:
Bryce Romberger
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