A pearl.
Walnut is an edible nut with a smooth thin shell.
Alive in a shell
100% minus the shell
The outer shell. It is also edible.
walnut
yes but you need to chew alot
If it is dead it will be open therefore if it is alive it will be closed. Sometimes they are open but still alive, but if you tap their shell they close it.
Ormer
The edible univalves belong to the class Gastropoda. This class includes snails, slugs, and whelks, which are all mollusks with a single shell.
abalone
A calipash is an edible greenish material found underneath the upper half of a turtle's shell.
The nut with the hardest shell is the macadamia nut. It is difficult to crack because the edible part is stuck to the inside of the shell.