Human Body

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Across
  1. 2. The Air we breathe in
  2. 3. The bones join to form a ___________.
  3. 5. The organ which controls all the organ systems
Down
  1. 1. The smallest entiry present in our body.
  2. 3. This excretory organ removes the waste through the sweat
  3. 4. This is the first organ present in the Respiratory system