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Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t
. Collagen (Mr 300,000) is a rod-shaped molecule, about 3,000 Å
long bone
But tortoises on lusher islands where grass is plentiful and the need to reach into trees not so fre
The hyoid bone from a Neandertal and a chimpanzee.
The greatest bone mass is found around age 30 for both men and women, with the later decline being f