Why do we need a skeleton?, It supports our body and protects important organs, Why is the skull hard?, To protect the brain, Why is the rib cage made of many bones?, To protect the heart and lungs while allowing the chest to move when we breathe, Why aren't all bones the same size and shape?, Because they have different jobs, Why does a dog have a different skeleton from a human?, Because a dog has a different body shape and moves differently

Skeleton

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Skeleton,muscles and movement quiz
Skeleton,muscles and movement quiz
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随堂测验
人体主要骨骼的功能
人体主要骨骼的功能
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随堂测验
Bones in the body
Bones in the body
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标记图表
Bones in the Body
Bones in the Body
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Organs and skeleton
Organs and skeleton
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开箱游戏
Bone structure
Bone structure
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标记图表
The skeletal system of a dog
The skeletal system of a dog
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Science: Structures Used for Support, Movement and Protection
Science: Structures Used for Support, Movement and Protection
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