The human skeleton is comprised of 206 different bones that provide a framework for the body. The long bones in the arms and legs are made primarily of cancellous and compact bone. Compact bone is the hard outer layer, and cancellous bone is the spongy inner layer. Which of the following corresponds to the level of compact and cancellous bone in the structural hierarchy used to describe human beings? A cell B organ C organ system D tissue
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The human skeleton is comprised of 206 different bones that provide a framework for the body. The lo...
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