Asked by jay
hy are lichens a good pioneer species after a volcanic eruption?
They are able to grow on moist soil.
They are able to grow on bare rock.
They are able to attract animals.
All Answers 1
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Correct answer: They are able to grow on bare rock.
Explanation: Lichens tolerate harsh, exposed conditions and can colonize bare volcanic rock. They chemically and physically break down the rock and trap dust, helping form the first thin soils that allow other plants to establish. Growing on moist soil can be true for some lichens but isn’t what makes them good pioneers after an eruption; “attract animals” is not a primary reason.
Explanation: Lichens tolerate harsh, exposed conditions and can colonize bare volcanic rock. They chemically and physically break down the rock and trap dust, helping form the first thin soils that allow other plants to establish. Growing on moist soil can be true for some lichens but isn’t what makes them good pioneers after an eruption; “attract animals” is not a primary reason.
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