Human Growth and Development

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Across
  1. 2. when one is fully developed
  2. 5. System of breaking down food into nutrients
  3. 6. system that regulates the flow of blood
  4. 8. Arthritis of the Ear
  5. 9. First stage of development
Down
  1. 1. The total number of human body systems
  2. 2. Marked by the changes of puberty
  3. 3. The age at which the brain begins to shrink
  4. 4. Main organ for the Respiratory system
  5. 7. Largest human organ