Question

(a) Lichens are a composite of which two organisms? What type of
nutritional relationship exists here?​

Answer 1

Answer:

lichens are composed of which two organisms - fungi , algae.

this nutritional type of relationship is called as SYMBIOSIS.

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Answer 2

Answer:

Lichens are composite organisms containing algae and fungus. They live in symbiotic association. In this, algae provides food and nutrition obtained by photosynthesis. In turn, fungus provides protection, anchorage and absorption of water and nutrition from soil for algae.