Identify the correctly matched pair.

Which of the following characteristics is not shared by birds and mammals?

Column $-I$ represents the animal class, while Column $-II$ represents the exoskeleton. Choose the correct option:

Column $-I$	Column $-II$
$(A)$ Cartilaginous fishes	$(i)$ Cycloid scales
$(B)$ Bony fishes	$(ii)$ Epidermal scales
$(C)$ Reptiles	$(iii)$ Placoid scales

Match the animals in Column-$I$ with their common names in Column-$II$.

Column-$I$	Column-$II$
$(a)$. Limulus	$(i)$. Tusk shell
$(b)$. Ophiura	$(ii)$. Tapeworm
$(c)$. Taenia	$(iii)$. Brain coral
$(d)$. Meandrina	$(iv)$. King crab
$(e)$. Dentalium	$(v)$. Brittle star

Which of the following characteristics are $NOT$ common to both Aves (birds) and Mammalia (mammals)?
$I$ - Homeothermic (warm-blooded) animals.
$II$ - Respire through lungs.
$III$ - Possess a four-chambered heart.
$IV$ - Dioecious (sexes are separate).
$V$ - Possess hair on the skin.
$VI$ - Show internal fertilization.
$VII$ - Possess teeth.

Match the following:

List-$I$	List-$II$
$(a)$ Physalia	$(i)$ Pearl oyster
$(b)$ Limulus	$(ii)$ Portuguese Man of War
$(c)$ Ancylostoma	$(iii)$ Living fossil
$(d)$ Pinctada	$(iv)$ Hookworm

Choose the correct answer from the options given below.