Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Thermoacidophiles	$(P)$ Chitinous cell wall
$(2)$ Protista	$(Q)$ Gram-positive bacteria
$(3)$ Morel (Fungi)	$(R)$ Hot springs
$(4)$ Firmicutes	$(S)$ Slime molds

Match the following columns:

Column $I$	Column $II$
$1.$ Strigula	$p.$ Peacock feather
$2.$ Viroid	$q.$ Sessile plants and motile animals
$3.$ Protista	$r.$ Lichen
$4.$ Cyanobacteria	$s.$ Filamentous gall disease
$5.$ Thuja	$t.$ Anabaena

Into how many kingdoms is the domain $Eukarya$ divided?

The five kingdom system of classification suggested by $R.H. Whittaker$ is not based on:

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?

Which of the following is not included in Whittaker's five-kingdom classification?