living things

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Across
  1. 2. A living organism that grows on dead plants and animals
  2. 5. The process by which plants prepare their own food
  3. 6. The animal made up of one cell
Down
  1. 1. The gas needed for photosynthesis
  2. 3. A green pigment needed for photosynthesis
  3. 4. The smallest living part of a living thing