What is common among $Porphyra$,$Agaricus$,$Chlorella$,and $Spirulina$?

  • A
    They all are photosynthetic
  • B
    They have eukaryotic cell organization
  • C
    They all are single celled
  • D
    They all are used as food or food supplements

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Which of the following is not a group of flowering plants?

Column-$I$ lists the series and Column-$II$ lists the number of orders in Bentham and Hooker's classification system. Select the correct option.
Column-$I$Column-$II$
$A$. Thalamiflorae$p$. $6$
$B$. Disciflorae$q$. $4$
$C$. Calyciflorae$r$. $5$
$D$. Inferae$s$. $3$

Embryophyta includes ........

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