What are lichens?
Q: What are lichens?
A: Lichens are living things that grow on rocks.
Q: What is the composition of lichen?
A: Lichen is a mixture of two very different things, a fungus and an algae.
Q: Do lichens look like plants?
A: Yes, lichens look like plants, but they are not.
Q: When did botanists discover that lichens are not plants?
A: Botanists did not know that lichens are not plants until 1875.
Q: Can lichens trade things with each other?
A: Yes, the fungus and the algae in lichen trade things with each other.
Q: How does the fungus and the algae in lichen work together?
A: The fungus and the algae in lichen live together, and they exchange things with each other.
Q: What is the importance of the fungus and the algae in lichen?
A: The importance of the fungus and the algae in lichen is that they help each other and create a unique organism that can survive in harsh environments.
