Plants and ecology

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Across
  1. 3. An animal hunted and eaten by another. (4)
  2. 5. A living thing that makes its own food at the start of a food chain. (8)
  3. 7. A relationship where living things rely on each other. (15)
  4. 9. A community of organisms and their environment. (9)
  5. 11. The ability to stay alive in a given environment. (8)
  6. 12. An animal that eats other animals. (9)
  7. 13. The process by which plants make their own food using sunlight. (14)
Down
  1. 1. An organism that eats only plants. (9)
  2. 2. An organism that eats meat. (9)
  3. 4. The place where an organism lives. (6)
  4. 5. A carnivore that hunts and eats other animals. (8)
  5. 6. A source of power that flows through food chains. (6)
  6. 8. The third consumer, usually at the top of the food chain. (8)
  7. 10. Features that help an organism survive in its environment. (11)