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Assessment
What are lichens primarily composed of?
A fungus and an alga or cyanobacterium
Only fungi
Plants and animals
Only algae
Which of the following environments are lichens most commonly found in?
Extreme environments, such as deserts and tundra
Underwater ecosystems
Deep soil layers
Urban areas exclusively
What is a significant ecological role of lichens?
They are decomposers that recycle nutrients.
They primarily serve as food for large mammals.
They are the main pollinators of flowers.
They absorb and store water like mosses.
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