Which of the following are TRUE statements regarding animal skeletons?
A) Animal skeletons rely on rigid tissues, or on water, for support and movement.
B) Rigid endoskeletons and exoskeletons rely on flexible joints to allow movement in certain directions.
C) An advantage of endoskeletons is that they can be repaired if broken.
D) Bony endoskeletons are found only in vertebrate animals.
E) Exoskeletons are found in arthropods, mollusks, and cnidarians.
Correct Answer:
Verified
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