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Mutualism

The two micro...

Question

The two micro-organisms which live in symbiotic association in lichens are

A

Fungus and protozoa

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B

Alga and bacteria

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C

Bacteria and protozoa

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D

Alga and fungus

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Solution

The correct option is D Alga and fungus
A lichen is a composite organism consisting of a fungus (the mycobiont) and a photosynthetic partner (the photobiont) growing together in a symbiotic relationship.

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Q. Question 4
The two micro-organisms which live in symbiotic association in lichens are

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(c) bacteria and protozoa
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Q. Assertion :In lichens, mycobiont and phycobiont are symbiotically associated in which algae is predominant and fungi is a subordinate partner. Reason: The fungus provides food and alga protects the fungus from unfavourable conditions.

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