The figure given below is the T.S. of an Azol | vedclass

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(C) $Azolla$ is a free-floating aquatic fern that maintains a symbiotic relationship with the nitrogen-fixing cyanobacterium $Anabaena$ $azollae$.This

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Anabaena

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(C) $Azolla$ is a free-floating aquatic fern that maintains a symbiotic relationship with the nitrogen-fixing cyanobacterium $Anabaena$ $azollae$.This cyanobacterium resides within the specialized leaf cavities of the $Azolla$ plant.The provided figure clearly labels the filaments within the leaf cavity as $Anabaena$.Therefore,the correct option is $C$.

Column-$I$	Column-$II$
$(1)$ Psilopsida	$A$. Selaginella
$(2)$ Lycopsida	$B$. Adiantum
$(3)$ Sphenopsida	$C$. Equisetum
$(4)$ Pteropsida	$D$. Psilotum

The figure given below is the $T.S.$ of an $Azolla$ leaf. The filaments present in the cavity of the leaf are of . . . . . . .

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Match the following:

Column-$I$ Column-$II$

$(1)$ Psilopsida $A$. Selaginella

$(2)$ Lycopsida $B$. Adiantum

$(3)$ Sphenopsida $C$. Equisetum

$(4)$ Pteropsida $D$. Psilotum

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