| question | The coral may use any hard surface as its ___, so artificial reefs have been created by sinking old ships. |
|---|---|
| option-correct | substrate |
| options | stratocumulusequilateralstratumlateralsubstratecollateralstratificationbilateral |
| hint | Fill in the Blank |
Tags: mwvb::quiz:fillblanks, mwvb::unit:27, mwvb::unit:27:quiz, mwvb::unit:27:quiz:fillblanks, obsidian_to_anki
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