Which Statement About Skeletons Is True

question 45

Multiple Choice

Which statement about skeletons is true?

• A) They can consist of mostly cartilage.
• B) Hydrostatic skeletons cannot be used for locomotion.
• C) An advantage of exoskeletons is that they can continue to grow throughout the life of the animal.
• D) External skeletons must remain flexible, so they never include calcium carbonate crystals, as bones do.
• E) Internal skeletons consist of four different types of bone: compact, cancellous, membranous, and Haversian.

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