Question

Lichens are considered good examples of obligate mutualism"". Comment.

Answer 1

Answer:

Lichens are made up of an algae and a fungi living together. Fungal partner provides the raw materials for photosynthesis while the algal partner prepares food through photosynthesis thus exhibiting an obligate mutualism.

Answer 2

Answer:

A lichen is an organism that results from a mutualistic relationship between a fungus and a photosynthetic organism. The other organism is usually a cyanobacterium or green alga. The fungus grows around the bacterial or algal cells. The fungus benefits from the constant supply of food produced by the photosynthesizer