Question

3.
in an association
between fungus and an algea​

Answer 1

Explanation:

A lichen is not a single organism; it is a stable symbiotic association between a fungus and algae and/or cyanobacteria. ... The lichen symbiosis is thought to be a mutualism, since both the fungi and the photosynthetic partners, called photobionts, benefit.

Answer 2

Answer:

Fungus are heterotrophic , they are dependent on other for their nutrients requirement . They feed on dead and decaying organic matter .

Algae are autotrophic . They have chlorophyll and perform photosynthesis .

Explanation:

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