Which Statement About Skeletal Systems Is True

Multiple Choice

Which statement about skeletal systems is true?

A) An exoskeleton consists mostly of cartilage.
B) A hydrostatic skeleton cannot be used for locomotion.
C) An exoskeleton can continue to grow once it is laid down.
D) An external skeleton must remain flexible,so it never includes calcium-containing minerals,as bones do.
E) Bones in an endoskeleton are constantly undergoing change and remodeling.