Question

Which of the following statement(s) is/are true about lichen?
A. Lichen is a single organism.
B. Lichens are pollution indicators.
C. Fungi provides anchorage and moisture for algae.
D. Algal part in lichen are parasitic.

• A. A
• B. B
• C. C
• D. D

Answer 1

Answer: (B), (C)

The correct options are
B B
C C

• Lichen is not a single organism, it is a symbiotic association between algae and fungi.
• Algae prepares food for fungi. On the other hand, fungi provides anchorage and absorbs water and mineral for the algal partner.
• Lichens are very good pollution indicators. They do not grow in polluted areas, especially sulphur dioxide.