6.1 Support, Movement and Growth in Animals

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Birds have endoskeleton adapted for flight. What is the function of their endoskeleton in flying?

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What is the external skeleton inside the body called of?

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What is the difference between land vertebrates and aquatic vertebrates?

Land vertebrates have smaller pectoral and pelvic girdles compared to aquatic vertebrates
Aquatic vertebrates is supported by endoskeleton while land vertebrates is supported by exoskeleton
Aquatic vertebrates have light and flexible endoskeleton unlike land vertebrates
The body weight of land vertebrates is supported by the buoyancy of water

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Which animal has hydrostatic skeleton?

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What is the function of exoskeleton?

Difficulty Level: Medium