Across
- 2. The average weather conditions in a particular area over a long period of time.
- 3. A relationship between two species of organisms in which both benefit.
- 5. An organism that can produce its own food using energy from the sun or from chemicals in the environment.
- 10. The act of one organism killing and eating another.
- 11. The state of the atmosphere at a particular place and time, including temperature, humidity, precipitation, and wind.
- 12. The part of the earth's surface and atmosphere that is inhabited by living organisms.
- 14. Relating to or resulting from living organisms.
- 20. A hierarchical series of organisms each dependent on the next as a source of food.
- 22. The process by which a new community develops in a previously uninhabited and barren habitat.
- 25. A relationship between two species in which they live in close association with each other, often to the benefit of both.
- 26. a community of living and nonliving things interacting with each other in a particular environment.
- 28. An animal that feeds on dead organic material, such as plant or animal remains.
- 29. The angular distance of a place north or south of the earth's equator, measured in degrees.
- 30. All the living organisms in a particular area, interacting with each other and with the nonliving factors of their environment.
Down
- 1. An animal that feeds on flesh, typically other animals.
- 4. The process by which certain bacteria convert atmospheric nitrogen into a form that can be used by plants.
- 6. The process by which a new community develops in a habitat that has been disturbed but still contains some remnants of the previous community.
- 7. A factor that restricts the growth or distribution of a population within an ecosystem.
- 8. an animal that eats both plants and animals.
- 9. An organism that cannot produce its own food and instead obtains nutrients by consuming other organisms.
- 13. The study of how organisms interact with each other and with their environment.
- 15. A relationship between two species in which one benefits while the other is neither harmed nor helped.
- 16. The role and position that an organism has in its environment, including how it interacts with other organisms and with the physical environment.
- 17. The natural environment in which an organism lives, including all living and nonliving factors that affect the organism.
- 18. A group of individuals of the same species living in a particular area.
- 19. An animal that feeds on plants.
- 21. Relating to or resulting from non-living factors in the environment, such as temperature, rainfall, and sunlight.
- 23. A complex system of interlocking food chains that shows the flow of energy and nutrients through an ecosystem.
- 24. A large, naturally occurring community of plants and animals that occupies a major habitat, such as a desert, tundra, or rainforest.
- 27. A relationship between two species in which one benefits at the expense of the other.