Unit 3 Biology Crossword

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Across
  1. 3. Living things e.g. grazing, predation
  2. 6. Number of organisms of the same species in a habitat
  3. 7. Ultimate source of energy for an ecosystem
  4. 9. Energy lost from food chain
  5. 11. They are carnivores and hunt for prey
  6. 14. Stage 3 of Speciation
  7. 18. Where an organism lives
  8. 19. Non-Living e.g. water, temperature
  9. 20. A group of interbreeding to produce fertile offspring
  10. 22. A natural biological unit in which organisms interact with their environment
  11. 23. Stage 4 of Speciation
  12. 24. All organisms which occupy a habitat
  13. 25. Presence or absence give information about the level of pollution or other environmental conditions
Down
  1. 1. What does a food chain always start with?
  2. 2. Variety and relative abundance of species present in an ecosystem
  3. 4. Competition between different species
  4. 5. Something that consumes other organisms
  5. 8. Shows the energy shows the energy available at each stage in a food chain
  6. 9. Stage 2 of Speciation
  7. 10. Role an organism plays
  8. 12. Competition between the same species
  9. 13. Show the total number of organisms at each stage in a food chain
  10. 15. Energy lost from food chain
  11. 16. Energy lost from food chain
  12. 17. Stage 1 of Speciation
  13. 19. Shows the direction of energy in a food chain
  14. 21. What predators hunt for