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Answer: An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. The liver, stomach, brain, and blood are all different organs and perform different functions.
Answer:
Osteoclasts are responsible for resorbing, or breaking down, bone matrix. A balance between bone production and bone resorption is necessary for remodeling and renewing your skeleton. Osteocytes are mature osteoblasts that have become trapped within the very bone matrix they produced.