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