Multiple choice

Lichen is a symbiotic association between ________ and ________.

  1. algae and fungi

  2. anabaena and algae

  3. virus and fungi

  4. amoeba and algae

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lichens are mutualistic symbiotic associations between fungi (mostly ascomycetes) and photosynthetic algae or cyanobacteria. The fungal partner provides structure and moisture retention, while the algal partner performs photosynthesis to produce food for both.