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(D) Let us analyze each statement:$(A)$ $Nostoc$ is a cyanobacterium that contains specialized cells called heterocysts for nitrogen fixation. This st

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(D) Let us analyze each statement:$(A)$ $Nostoc$ is a cyanobacterium that contains specialized cells called heterocysts for nitrogen fixation. This statement is correct.$(B)$ Bacteria exhibit diverse modes of nutrition; while many are heterotrophs,many are also autotrophs (photosynthetic or chemosynthetic). This statement is incorrect.$(C)$ $Funaria$ is monoecious (bisexual),but $Marchantia$ is dioecious (unisexual). This statement is incorrect.$(D)$ Diatom cell walls are embedded with silica,making them indestructible and forming 'diatomaceous earth'. This statement is incorrect.Therefore,only statement $(A)$ is correct. The total number of correct statements is $1$.

Column-$I$ (Terms)	Column-$II$ (Examples)
$A$. Ascus	$I$. Spirulina
$B$. Basidium	$II$. Penicillium
$C$. Protista	$III$. Agaricus
$D$. Cyanobacteria	$IV$. Euglena
$E$. Animalia	$V$. Sponges

Read the following four statements $(A-D)$ carefully :
$(A)$ Heterocyst is found in $Nostoc$
$(B)$ All bacteria are heterotrophs
$(C)$ Both $Funaria$ and $Marchantia$ are monoecious.
$(D)$ The walls of diatoms are easily destructible.
How many of the above statements are correct?

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Column-$I$ (Terms) Column-$II$ (Examples)
$A$. Ascus $I$. Spirulina
$B$. Basidium $II$. Penicillium
$C$. Protista $III$. Agaricus
$D$. Cyanobacteria $IV$. Euglena
$E$. Animalia $V$. Sponges
Match the terms given in column-$I$ with their examples given in column-$II$ and choose the correct option.

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Read the following four statements $(A-D)$ carefully :$(A)$ Heterocyst is found in $Nostoc$$(B)$ All bacteria are heterotrophs$(C)$ Both $Funaria$ and $Marchantia$ are monoecious.$(D)$ The walls of diatoms are easily destructible.How many of the above statements are correct?