In diploid organisms,the gamete-producing cells are called:

Select the correct option from Column-$I$ and Column-$II$.

Column-$I$	Column-$II$
$(A)$ Asexual reproduction in Spirogyra	$(p)$ Mycobiont
$(B)$ Vegetative reproduction in Yeast	$(q)$ By zoospores
$(C)$ Fungal component in Lichen	$(r)$ Perithecium
$(D)$ Asexual reproduction in Lichen	$(s)$ By spores
$(E)$ Flask-shaped fruiting body of Lichen	$(t)$ Phycobiont
	$(u)$ By budding
	$(v)$ Apothecium

Assertion : Death is one of the important regulatory processes on earth.
Reason : It avoids over-crowding caused by continuous reproduction.

Classify the following organisms based on internal and external fertilization:
$I -$ Fungi,$II -$ Aves (Birds),$III -$ Algae,$IV -$ Bryophytes,$V -$ Pteridophytes,
$VI -$ Gymnosperms,$VII -$ Angiosperms,$VIII -$ Fish,
$IX -$ Amphibians,$X -$ Reptiles,$XI -$ Mammals.

Oestrus cycle is cyclic changes in the activities of ovaries and accessory duct during

........ and ........ are examples showing external fertilization.