Science Crossword

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Across
  1. 5. making more living things of the same type
  2. 6. all living things do this
  3. 7. detecting changes in the surroundings
Down
  1. 1. all living things do this, even plants
  2. 2. getting rid of waste
  3. 3. getting energy from food
  4. 4. taking in and using food