Multiple choice

There exists a close association between the alga and the fungus within a lichen. The fungus

  1. provides food for the alga

  2. provides protection, anchorage and absorption for the alga

  3. fixes the atmospheric nitrogen for the alga

  4. releases oxygen for the alga

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

 There exists a close association between the alga and the fungus within a lichen. The fungus provides protection, anchorage and absorption for the alga.This association is known as symbiosis.