Across
- 1. non-living factors in an environment such as sunlight, temperature, and water.
- 3. the natural process of change in the types of species in an ecosystem over time.
- 6. an organism that is hunted and eaten by predators.
- 7. a living thing, such as a plant, animal, or microbe.
- 11. the process by which plants make their own food using sunlight, carbon dioxide, and water.
- 12. Capacity the maximum number of organisms an environment can support.
- 15. an organism that obtains energy by eating other organisms.
- 17. Consumer an organism that eats primary consumers (usually carnivores or omnivores).
- 19. Species a species that has a major impact on its ecosystem.
- 20. a symbiotic relationship where one organism benefits and the other is unaffected.
- 23. the variety of life in a particular habitat or ecosystem.
- 24. a symbiotic relationship where one organism benefits and the other is harmed.
- 26. Pyramid a diagram showing energy flow from producers to top predators in an ecosystem.
- 29. Consumer an organism that eats secondary consumers (top predator).
- 30. the protection and preservation of natural environments and resources.
- 32. Web a network of interconnected food chains showing energy flow in an ecosystem.
- 33. an organism that breaks down dead or decaying organisms and returns nutrients to the soil.
- 35. Consumer an organism that eats producers (usually herbivores).
- 37. the struggle between organisms for the same resources in an environment.
- 39. an animal that feeds on dead animals.
- 40. an organism that lives in or on another organism and benefits by harming it.
- 43. living components in an ecosystem such as plants, animals, and bacteria.
- 44. the role or function of an organism in its environment.
- 45. Resource a resource that cannot be replaced within a human lifetime.
- 46. the process of land development into cities that can affect ecosystems.
- 48. an organism, like a plant, that makes its own food through photosynthesis.
- 49. Factor an environmental condition that restricts the growth, abundance, or distribution of a population.
Down
- 2. an animal that eats only other animals.
- 4. a close and long-term relationship between two different species.
- 5. an animal that eats only plants.
- 8. all members of the same species living in a specific area.
- 9. a symbiotic relationship where both organisms benefit.
- 10. an organism that hunts and eats other organisms.
- 13. an organism that gets its energy by consuming other organisms.
- 14. Species a non-native species that spreads and causes harm to native species and ecosystems.
- 16. Level a level in a food chain or food web based on how an organism gets its energy.
- 18. the natural home or environment of an organism.
- 21. a community of living and nonliving things that interact in an environment.
- 22. a characteristic that helps an organism survive and reproduce in its environment.
- 25. related to land environments.
- 27. all the living and nonliving things that surround and affect an organism.
- 28. Species a species that naturally occurs in a specific region or ecosystem.
- 31. Chain a sequence of organisms where each is a source of food for the next.
- 34. a group of similar organisms that can reproduce and have fertile offspring.
- 36. an organism that feeds on dead plant and animal material.
- 38. Density the number of individuals per unit area or volume.
- 41. Resource a natural resource that can be replenished naturally over time.
- 42. an animal that eats both plants and animals.
- 47. an organism that a parasite lives in or on and often harms.