Examlex
Which of the following best describes the first living entity-the one responsible for the origin of life?
Hydroxyapatite
A naturally occurring mineral form of calcium apatite, mainly found in bones and teeth, providing hardness and strength.
Osteocyte
Mature bone cell surrounded by bone matrix.
Bone Maintenance
The process by which bone tissue is renewed through the activities of osteoclasts (breaking down bone) and osteoblasts (forming new bone), ensuring strength and health of bones.
Lamellar Bone
The mature type of bone tissue that forms concentric layers or sheets, providing strength and stability.
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