Science

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Across
  1. 3. a community of plants and animals that have common characteristics
  2. 5. the regions occupied by organisms
  3. 7. A living factor.
  4. 8. They are invisible gasses
  5. 10. Predators do this to prey.
  6. 13. factor A factor that restricts an organism's population
  7. 16. an organism that makes its own food.
  8. 21. Where an animal eats both plants and animals
  9. 25. The process where a plant makes oxygen and sugars.
  10. 26. Something that consumes dead organisms.
  11. 27. Something that consumes other animals for energy.
  12. 28. To breathe
  13. 29. the process of change in a species structure.
  14. 30. A biological interaction
Down
  1. 1. the substance formed when two chemicals react.
  2. 2. A match of species in a specific environmental condition
  3. 4. a nonliving factor
  4. 6. Something that eats only plants for energy.
  5. 9. a relation where both species benefit
  6. 11. A community of living organisms.
  7. 12. Animals use these I harsh environments to stay alive.
  8. 14. You and the people in you town are one of these
  9. 15. an area with multiple different species
  10. 17. A relation where one benefits and the other is not harmed.
  11. 18. the home of a plant or animal.
  12. 19. excessive richness in nutrients.
  13. 20. The T-rex was this type of animal.
  14. 22. Closely related organisms that are like each other
  15. 23. capacity the maximum population size an environment can sustain
  16. 24. A relation where one benefits, and the other doesn’t.
  17. 25. species A species that is first to colonize an environment.