BIOLOGY

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Across
  1. 2. / The study of life.
  2. 4. / Composed of a group of different tissue.
  3. 6. / Groups of organ that compromises in a system such as digestive, nervous, skeletal etc.
Down
  1. 1. / Stages from smallest to largest component of an organism.
  2. 3. / an individual that consist atoms to organ system. You are the clue.
  3. 5. / Smallest unit of that replicate independently consist of organelles.