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shell because it is hollow and therefore represents the form of a shell which is also recognized as a shell structure
Mass I think because foam is not a shell structure or frame.
This depends on the Definition of "Shell Structure" Most laypersons class a car as a shell structure. But for engineering purpose's?
From the standpoint of structure the opposite of a shell is what is inside the shell, or the interior.In biology, the opposite or reverse structure from a shell is a skeleton. (A shell being an exoskeleton.) On the other hand, the contrasting structure in animals that do not have shells could be the skin, an opposite or alternative type of exterior.
my toes
Shell structure
shell because it is hollow and therefore represents the form of a shell which is also recognized as a shell structure
the sphinx is a mass/ shell structure
mass
mass structure, frame structure and shell structure
mass
it is a frame sturctures
A basketball is not a mass structure because it is not made up of piled up materials. For instance, a brick wall is a mass structure. A basketball is actually a shell structure.
eiffel tower is a frame structure.
its a frame
A crayon is a mass struture. It is a mass structure because it does not have a skeleton for a frame is does not hold anything it is, so it isn't a shell so it must be a mass.
Mass I think because foam is not a shell structure or frame.