The Human Body presents information and investigations on these nine concepts:
• Cells are the fundamental unit of life
• Specialized cells protect the body from harmful substances
• Food follows a path as it is digested
• Good nutrition provides energy for cell growth and repair
• The heart and lungs work together
• Muscles and bones provide movement and support
• The nervous system relays messages to and from the brain
• Parents pass traits to future generations
• Body systems interact
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