Q. There exists a close association between the alga and the fungus within a lichen. The fungus :
A) fixes the atmospheric nitrogen for the alga
B) provides protection, anchorage and absorption for the alga
C) provides food for the alga
D) releases oxygen for the alga
Explanation
[Solution from source] In a lichen, the algal partner (phycobiont) photosynthesises and makes food. The fungal partner (mycobiont) gives shelter, anchorage, and absorbs water and minerals for it. Food and oxygen come from the alga, not the fungus. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.