1. formaldehyde
2. paradichlorobenzene
3. tobacco smoke
4. toronto smog
5. pesticides
Answer:
In order for a fracture to heal, the bones must be held in the correct position and protected. Soon after a fracture occurs, the body acts to protect the injured area, and forms a protective blood clot and callus around the fracture. New "threads" of bone cells start to grow on both sides of the fracture line.
Explanation:
A synovial joint is a joint in which is highly common and moveable. They are covered with cartilage and connected by ligaments, lined with a membrane. <span>
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