Its a soft bodied hard shelled animal, some folk say food in a shell. Slugs are defined as land snails with no shell but I sure wouldn't eat them.
Molluscs are invertebrates that range from the snail to the giant squid.
No, a mollusc is a mollusc.
rine mollusc's homne
sand burrowing mollusc
The economic importance of mollusc is that there are a staple food in many countries.
No.
http://en.wikipedia.org/wiki/Mollusc The answer is very vast and hopefully this link will provide appropriate information.
No, its a Mollusc
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yes it is
yes.
no, they are invertebrates