Environment and variation

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Across
  1. 3. Small areas of a habitat with certain conditions
  2. 5. Differences between organisms passed to offspring by their parents
  3. 10. Children
  4. 12. The conditions around a certain organism caused by physical environmental factors
  5. 13. An animal that only eats other animals
  6. 14. Animal with no backbone
  7. 15. An animal that catches and eats other animals
  8. 18. Caught by a predator
  9. 19. An organism that eats other organisms to stay alive
  10. 20. A type of variation which shows a range of data
  11. 21. A living thing
  12. 23. A place where an organism lives
Down
  1. 1. At the beginning of every food chain
  2. 2. Type of arthropod with four pairs of legs
  3. 4. The way an organism acts or reacts to things around it
  4. 6. When two or more organisms struggle against one another to get the same things
  5. 7. A type of variation that do not have a continuous range
  6. 8. Cannot have children
  7. 9. The differences between things
  8. 11. A type of tree that keeps its leaves even in winter
  9. 16. A tree that loses its leaves in winter
  10. 17. Formed when two different species reproduce
  11. 22. The features that plants and animals have that help them survive in certain places