given below are the pairs of animals and phylum which they belong to. which out of these is not a matching pair and why?

 

 

bombyx - arthropoda

 

 

loligo - mollusca 

 

 

asterias - mollusca 

 

 

saccoglossus - hemichordata

 

 

 

 

 

the pair asterias - mollusca is not matching.

 

 

asteria, i.e. star fish, shows the presence of a water vascular system, the adult is radially symmetrical and larvae are bilaterally symmetrical. hence, asterias is an echinoderm.