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(B) Azospirillum is a free-living nitrogen-fixing bacterium,so $a-2$.$(b)$ Cyanobacteria (like Anabaena,Nostoc) are autotrophic microbes that fix nitr

Vedclass · Accepted Answer

$a-2, b-4, c-1, d-3$

Vedclass · Answer

(B) Azospirillum is a free-living nitrogen-fixing bacterium,so $a-2$.$(b)$ Cyanobacteria (like Anabaena,Nostoc) are autotrophic microbes that fix nitrogen,so $b-4$.$(c)$ Rhizobium is a symbiotic bacterium found in the root nodules of legumes,so $c-1$.$(d)$ Glomus is a fungal genus that forms symbiotic associations with plants known as mycorrhiza,so $d-3$.Therefore,the correct matching is $a-2, b-4, c-1, d-3$.

Column-$I$	Column-$II$
$(a)$ Azospirillum	$(1)$ Symbiotic bacteria
$(b)$ Cyanobacteria	$(2)$ Free-living bacteria
$(c)$ Rhizobium	$(3)$ Mycorrhiza
$(d)$ Glomus	$(4)$ Autotrophic microbe

Match the following columns:

Column-$I$ Column-$II$

$(a)$ Azospirillum $(1)$ Symbiotic bacteria

$(b)$ Cyanobacteria $(2)$ Free-living bacteria

$(c)$ Rhizobium $(3)$ Mycorrhiza

$(d)$ Glomus $(4)$ Autotrophic microbe

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Match the following columns: Column-$I$ Column-$II$ $(a)$ Azospirillum $(1)$ Symbiotic bacteria $(b)$ Cyanobacteria $(2)$ Free-living bacteria $(c)$ Rhizobium $(3)$ Mycorrhiza $(d)$ Glomus $(4)$ Autotrophic microbe