Assertion: mollusk's shell | /r/HasProperty | hard
Facets:
value: fairly
type: DEGREE
Source sentences:
text: Because most mollusks have a hard shell, a lot of stone, and more than 35,000 known fossil species.
text: They have a hard outer shell.
text: In some species like tortoises and mud turtles, the shell is fairly hard, that also offers a small opening for the head and appendages.
text: The mantle (also known as the pallium) is the dorsal epidermis in mollusks; shelled mollusks are specialized to secrete a chitinous and hard calcareous shell.
text: Many molluscs also have a hard shell.
text: Although it is frequently confused for a mollusc because of its hard outer shell, it is actually a crustacean, closely related to crabs and lobsters.