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What are lichens?
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Lichens are strange plants. They are made up of algal cells, surrounded by a fungus. The same alga can live alone, but the fungus needs the alga to survive, because the alga can make food from sunlight energy. Lichens live on stones and trees and grow slowly.
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Previous:
Back
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Book:
Best Ever Q&A
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Section:
Nature
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Chapter:
Plant Kingdom
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