Which of the following pairs are correctly matched?

Animals	Morphological features
$(i)$ Crocodile	$4$-chambered heart
$(ii)$ Sea urchin	Parapodia
$(iii)$ Obelia	Metagenesis
$(iv)$ Lemur	Thecodont

Peripatus is a connecting link between

Which one of the following occurs in molluscs but not in echinoderms?

Match List $I$ with List $II$ :

List $I$	List $II$
$A$. Pleurobrachia	$I$. Mollusca
$B$. Radula	$II$. Ctenophora
$C$. Stomochord	$III$. Osteichthyes
$D$. Air bladder	$IV$. Hemichordata

Choose the correct answer from the options given below :

Given below are two statements:
Statement $I$: When any plane passing through the central axis of the body divides the organism into two identical halves, it is called radial symmetry.
Statement $II$: In phylum Echinodermata, both adults and larvae are radially symmetrical.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following phyla is correctly matched with its two general characteristics?