When a bone breaks, a blood clot rapidly forms around the fracture. Bone cells (ostoblasts) create a callus (soft cartilage) ...
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Game-Changing Tips and Tricks You Need to Know
What is Roblox? ROBLOX is an online virtual playground and workshop, where kids of all ages can safely interact, create, have fun, and learn. It’s unique in that practically everything on ROBLOX is ...
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