biology crossword

123456789101112131415161718
Across
  1. 3. The amount of a species in an environment
  2. 4. The study of how living things interact
  3. 7. Variety of life on Earth
  4. 9. Cannot make their own food, must eat others
  5. 10. A group of varied species interacting in an environment
  6. 11. A group of a lot of animals, showing what animals eat what
  7. 13. A singular type of organism
  8. 16. They make their own food
  9. 17. Eats the sun
  10. 18. How many of a species can live in an environment
Down
  1. 1. Something in an environment that reduces population.
  2. 2. Lots of different animals stacked on top of each other to show roles like producer, consumer, etc
  3. 5. Eats plants or other animals
  4. 6. Not living
  5. 8. Returns the energy of dead organisms back into the earth
  6. 12. Living
  7. 14. Living together in peace
  8. 15. A line of animals showing where the energy goes