The characteristics of life

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Across
  1. 3. Produce young like themselves.
  2. 7. Release energy from food.
Down
  1. 1. Detect changes in their surroundings.
  2. 2. Escape from danger.
  3. 4. Get rid of waste from the body.
  4. 5. Obtain energy and materials.
  5. 6. Increase in size to become adults.