1. In a piece of cartilage in the young skeleton, interstitial and appositional growth occur together. Compare and contrast interstitial and appositional growth.
2. Photocopy a picture of a skeleton, and then use a red pencil to color its membranous bones and a blue pencil to color its endochondral bones.
3. The actions of osteoblasts and osteoclasts make bone a dynamic tissue. What will happen if (a) the action of osteoblasts decreases in an old person and (b) the action of osteoclasts decreases in a child?
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