What is the Difference Between a Shark's Skeleton and a Human's Skeleton?
Skeletal Structure:
- Sharks: Cartilaginous skeleton made of flexible proteins
- Humans: Bony skeleton made of hard and rigid calcium phosphate
Mobility:
- Sharks: Flexible skeletons allow for faster, more streamlined movements
- Humans: Bony skeletons provide support and protection, but limit mobility
Buoyancy:
- Sharks: Cartilaginous skeletons are less dense than bone, aiding buoyancy in water
- Humans: Bony skeletons are denser, requiring muscles and fat for buoyancy
Growth:
- Sharks: Skeleton grows continuously throughout their lives via cartilage deposition
- Humans: Skeleton stops growing at adolescence
Other Differences:
- Sharks have a vertebral column while humans have a backbone.
- Sharks have pectoral and pelvic fins, while humans have arms and legs.
- Sharks lack a rib cage, while humans have a rib cage to protect their organs.
FAQs:
- Which skeleton is stronger? Human bony skeleton.
- Which skeleton is more flexible? Shark cartilaginous skeleton.
- Do sharks have bones? No, they have a cartilaginous skeleton.
- What is the purpose of a shark's skeleton? Buoyancy and mobility.
- What is the difference between a shark's vertebra and a human's vertebra? Shark vertebrae are composed of cartilage, while human vertebrae are bony.
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