What are our nose and ears made of___________?
Correct answer: A. Cartilage
- A. Cartilage
- B. Charades
- C. Charcoal
- D. Chitin
Explanation
The external framework of the nose and the outer parts of the ears are supported mainly by cartilage, a flexible connective tissue that is stronger than soft tissue but more flexible than bone. Chitin is found in arthropod exoskeletons, while charcoal is a carbon-rich material and charades is unrelated. Students may choose chitin because its name sounds similar to cartilage, but the two materials occur in different biological structures.
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About Joints
Joints are connections between bones that provide movement, stability or both. Coverage includes fibrous, cartilaginous and synovial joints, the structure of a synovial joint, cartilage, ligaments and synovial fluid, and the difference between ligaments that join bones and tendons that attach muscle to bone.
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