organ system cross-word to be completed in 7 minutes

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Across
  1. 4. the transport of substances around the body
  2. 6. protects the body against infections.
Down
  1. 1. takes in oxygen and removes carbon dioxide
  2. 2. supports the body and causes movement by muscles and bones working together.
  3. 3. system produces sperm and egg cells for the production of new organisms, also when the fetus develop
  4. 5. system breaks down and then absorbs food molecules