Reece Unit 1

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Across
  1. 4. multiple organisms competing for the same food
  2. 7. when an animal eats another they gain energy from what they ate.
  3. 12. animal that hunts other animals
  4. 13. everyone looks different and has different genetics
  5. 14. a chain that shows the transfer of energy
  6. 15. the total mass of organisms in a given area or volume
  7. 17. where certain animals live
  8. 18. signifies a habitat which is sustainable.
  9. 19. something that harms the environment
  10. 20. the levels of energy transfer
Down
  1. 1. an organism that consumes things for energy
  2. 2. the transfer of energy but with a lot more animals
  3. 3. things that limit the growth of a population
  4. 5. 6 levels of energy transfer
  5. 6. a non-living part of an ecosystem that shapes its environment.
  6. 8. produces energy
  7. 9. 10% of energy transfers whenever an animal is consumed
  8. 10. the total number of a certain species
  9. 11. animals that get hunted
  10. 16. the variety of life in the world or in a particular habitat or ecosystem.