The three-domain system of classification is $NOT$ based on which of the following criteria?

Which of the following may be referred to as 'badsonia'?

Match the scientists given in column $I$ with their discovery given in column $II$ and choose the correct option.

Column-$I$ (Scientists)	Column-$II$ (Discovery)
$A$. Ernst Mayr	$I$. Discovered Viroids
$B$. Whittaker	$II$. Gave the name virus
$C$. Ivanowsky	$III$. Proposed five kingdom classification
$D$. Diener	$IV$. Evolutionary biology

Which of the following is not included in the five-kingdom classification system?

Which of the following domains lacks a cell wall?

Consider the following statements $(A-D)$:
$(A)$ Heterocysts are important sites for nitrogen fixation in $\text{BGA}$.
$(B)$ Cell wall of diatoms is indestructible due to presence of calcium carbonate.
$(C)$ In fungi,the cell wall is made up of chitin.
$(D)$ Algae show isogamous,anisogamous,and oogamous types of sexual reproduction.
How many of the above statement$(s)$ is/are not correct?