Which scientist classified plants into $24$ groups based on their sexual characteristics?

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?

Match the following columns:

Column $I$	Column $II$
$1.$ Kingdom Monera	$p.$ Multicellular producer
$2.$ Kingdom Protista	$q.$ Multicellular decomposer
$3.$ Kingdom Fungi	$r.$ Multicellular consumer
$4.$ Kingdom Metaphyta	$s.$ Bacteria
$5.$ Kingdom Metazoa	$t.$ Euglena

Match Column-$I$ with Column-$II$ and select the correct option.

Column-$I$	Column-$II$
$(A)$ Father of Phycology	$(p)$ Ivanovsky
$(B)$ Discovery of Lichen	$(q)$ Prof. Shiv Ram Kashyap
$(C)$ Discovery of Virus	$(r)$ Prof. Iyengar
$(D)$ Father of Bryology	$(s)$ Rothmaler
$(E)$ Thermoacidophiles	$(t)$ Tulasne

Which of the following is a common characteristic shared by both yeast and bryophytes?

Most of the unicellular organisms are kept under