In which of the following are cleidoic eggs found?

Diploblastic animals occur in:

Match the following genera with their respective phylum:

$(a)$ Ophiura	$(i)$ Mollusca
$(b)$ Physalia	$(ii)$ Platyhelminthes
$(c)$ Pinctada	$(iii)$ Echinodermata
$(d)$ Planaria	$(iv)$ Coelenterata

Select the correct option:

Which one of the following species correctly matches its two characteristics and phylum/class?

Species	Two Characteristics	Phylum/Class
$A$. Ascaris	$i$. Body segmented,$ii$. Males and females distinct	Annelida
$B$. Salamandra	$i$. Tympanum represents ear,$ii$. External fertilization	Amphibia
$C$. Pteropus	$i$. Skin possesses hair,$ii$. Oviparous	Mammalia
$D$. Obelia	$i$. Cnidoblasts,$ii$. Organ-level organization	Coelenterata

How many of the following animals exhibit bilateral symmetry,are triploblastic,and possess a true coelom?
Sepia,Loligo,Sea anemone,Balanoglossus,Dentalium,Sea lily,Chiton,Pearl oyster,Starfish

Mark the odd member from the following: