Across
- 1. A process by which individuals that are better adapted to their environment are more likely to survive and reproduce than others of the same species
- 5. The series of predictable changes that occur in a community over time
- 8. All the members of one species in a particular area
- 10. A living thing
- 11. Nonliving part of an organism's habitat
- 13. The organism that does the killing in a predation interaction
- 16. The organism that benefits by living on or in a host in a parasitic relationship
- 17. A consumer that eats only plants
- 18. A close relationship between two organisms of different species where at least one organism benefits and both survive
- 22. The struggle between organisms to survive as they attempt to use the same limited resource
- 23. A relationship between two species in which one species benefits and the other is neither helped nor harmed
- 26. The specific environment that provides the things an organism needs to live, grow, and reproduce
- 27. A close relationship between organisms of two species in which both species benefit
- 29. A diagram that shows the amount of energy that moves from one feeding level to another in a food web
- 30. The organism that a parasite or virus lives in or on
- 33. The process in which some organisms use water, sunlight, and carbon dioxide to make their own food
- 35. The series of changes that occur in an area where no soil or organisms exist
- 36. The first species to populate an area
- 37. The study of how organisms interact with their environment
Down
- 2. A group or organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce
- 3. Living part of an organism's habitat
- 4. The series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist
- 6. An organism that can make its own food
- 7. An interaction in which one organism kills another for food
- 9. The pattern of overlapping food chains in an ecosystem
- 12. A relationship in which one organism lives on or in a host and harms it
- 14. All the different populations that live together in an area
- 15. The community of organisms that live in a particular area, along with their nonliving surroundings
- 19. A series of events in which one organism eats another and obtains energy
- 20. An organism that obtains energy by feeding on other organisms
- 21. A consumer that eats both plants and animals
- 24. A behavioral or physical characteristic that allows an organism to survive and reproduce in its environment
- 25. An organism that breaks down wastes and dead organisms, and returns important materials to the soil and water
- 28. A consumer that eats only animals
- 31. The role of an organism in its habitat, or how it makes its living
- 32. An organism that is killed and eaten by another organism
- 34. A carnivore that feeds on the bodies of dead organisms