Which of the following statements are incorre | vedclass

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(A) $Nostoc$ and $Anabaena$ are cyanobacteria,which belong to the kingdom Monera.$1$. They are prokaryotic organisms and do not possess tissue-level o

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$a$ and $c$

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(A) $Nostoc$ and $Anabaena$ are cyanobacteria,which belong to the kingdom Monera.$1$. They are prokaryotic organisms and do not possess tissue-level organization,as tissues are a characteristic of multicellular eukaryotes. Thus,statement $(a)$ is incorrect.$2$. They possess specialized cells called heterocysts for nitrogen fixation. Thus,statement $(b)$ is correct.$3$. They fix atmospheric nitrogen (not hydrogen) into ammonia. Thus,statement $(c)$ is incorrect.$4$. They are photosynthetic prokaryotes,also known as eubacteria. Thus,statement $(d)$ is correct.Therefore,statements $(a)$ and $(c)$ are incorrect.

Which of the following statements are incorrect for $Nostoc$ and $Anabaena$?
$(a)$. Possess tissue level organization
$(b)$. Have heterocysts
$(c)$. Can fix atmospheric hydrogen
$(d)$. They are eubacteria

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Which of the following statements are incorrect for $Nostoc$ and $Anabaena$?$(a)$. Possess tissue level organization$(b)$. Have heterocysts$(c)$. Can fix atmospheric hydrogen$(d)$. They are eubacteria