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Across
  1. 4. Green pigment present in leaves
  2. 5. organism that eats other plants or animals for energy and nutrients
  3. 7. method in which the food is consumed by the organisms
Down
  1. 1. method in which organisms make food for themselves
  2. 2. food making process in plants
  3. 3. Tiny pores present on surface of leaves
  4. 6. ultimate source of energy for all living organisms