Which of the following is common between Annelida and Arthropoda?

The circulatory system shown in the given figure is found in which of the following animals?

How many of the following characteristics are common to both Amphibians and Reptiles?
$a$ - Type of fertilization
$b$ - Cold-blooded (Poikilothermic)
$c$ - Development
$d$ - Oviparous
$e$ - Coelomate
$f$ - Bilateral symmetry

Fill in the blanks marked in the classification table of $Vertebrata$ from the choices provided below with respect to $A, B, C, D, E$ and $F$ and choose the correct option:
$I$. Pisces
$II$. Osteichthyes
$III$. Agnatha
$IV$. Gnathostomata
$V$. Chondrichthyes
$VI$. Cyclostomata
$A - B - C - D - E - F$

The appropriate sequence of numbered animals from column-$II$ matching with the sequence of larvae in column-$I$ is

Column-$I$	Column-$II$
$(a)$. Planula	$(i)$. Mussel
$(b)$. Glochidium	$(ii)$. Crab
$(c)$. Nauplius	$(iii)$. Obelia
$(d)$. Cysticercus	$(iv)$. Nereis
	$(v)$. Taenia solium

Identify the categories $P$,$Q$,and $R$ in the given classification chart of Vertebrata.