Question

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

• A. Provides food for the alga
• B. Provides protection, anchorage and
  absorption for the alga
• C. Fixes the atomospheric nitrogen for the alga
• D. releases oxygen for the alga

Answer 1

The correct option is B Provides protection, anchorage and

absorption for the alga
Lichens are symbiotic associations i.e. mutually useful associations, between algae and fungi. The algal component is known as phycobiont and fungal component as mycobiont, which are autotrophic and heterotrophic respectively. Algae prepare food for fungi and fungi provide shelter and absorb mineral nutrients and water for its partner.

Lichens are very good pollution indicators – they do not grow in polluted areas.

So, the correct answer is 'Option B- Provides protection, anchorage and absorption for the alga'.

So the correct option is B.