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Apologia Biology Module 13 Edition 2
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Vertebrae
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segments of bone or some other hard substance that are arranged into a backbone
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Terms in this set (26)
Vertebrae
segments of bone or some other hard substance that are arranged into a backbone
Notochord
a rod of tough, flexible material that runs the length of a creature's body, providing the majority of its support
Endoskeleton
a skeleton on the inside of a creature's body, typically composed of bone or cartilage
Bone Marrow
Soft tissue inside the bone that produces blood cells
Axial Skeleton
the portion of the skeleton that supports and protects the head, neck, and trunk