Lichens and Famous Scientists

Front

What is a lichen?

Back

A combination of an alga and a fungus that grows on rocks and trees.

Front

What is a fungus?

Back

A type of decomposer that must consume food; not a plant.

Front

How does an alga benefit when it joins up with a fungus?

Back

The alga gets a space to live because the fungus provides the structures and brings water and minerals to the alga.

Front

Where can an alga live after joining with a fungus?

Back

They can now live on trees and rocks in all types of land ecosystems, from deserts to rain forests.

Front

How are lichens beneficial to humans?

Back

They are pollution indicators; if there's too much air pollution, they won't grow.

Front

What are the two main components of a lichen?

Back

An alga and a fungus.

Front

What role do fungi play in ecosystems?

Back

Fungi are decomposers that break down organic matter, returning nutrients to the soil.

Front

Can lichens survive in extreme environments?

Back

Yes, lichens can survive in extreme environments like deserts and Arctic regions.

Front

What is the process by which algae produce food?

Back

Photosynthesis.

Front

Why are lichens considered bioindicators?

Back

They indicate the health of the environment, particularly air quality.