Sources of food

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Across
  1. 4. green plants
  2. 5. animals that eat flesh
  3. 7. animal that eat both plants and flesh
  4. 8. small animals that depends on other living animals
Down
  1. 1. animals that eat plants
  2. 2. the chemical substances in food
  3. 3. Help to keep the surrounding clean
  4. 6. chain chain of events