My favourite class_unit 2B

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Across
  1. 4. animal eating plants
  2. 5. conclude, deduce
  3. 10. to tame and keep as a pet
  4. 12. group of hornets
  5. 13. plants like wheat or rye
  6. 14. organism that lives on another organism
  7. 16. long period without rain
  8. 17. outer (surface, structure)
  9. 18. remember, call to mind
Down
  1. 1. animal living partly on land and partly in water
  2. 2. sth necessary, vital
  3. 3. group of elephants
  4. 6. ex, previous
  5. 7. a person or animal from a particular ancestor
  6. 8. unexpectedly be faced with problem or difficulty
  7. 9. remains of prehistoric animals
  8. 11. active at night
  9. 12. group of whales
  10. 14. interpret, regard as
  11. 15. innner (surface, structure)