2. Chapter 18 Interactions of Living Things

3. The study of the interactions between organisms and their environment Click for Term

4. Ecology The study of the interactions between organisms and their environment Click for Term

5. Living factors in the environment Click for Term

6. Biotic Living factors in the environment Click for Term

7. Nonliving factors in the environment Click for Term

8. Abiotic Nonliving factors in the environment Click for Term

9. A group of individuals of the same species that live together in the same area at the same time Click for Term

10. Population A group of individuals of the same species that live together in the same area at the same time Click for Term

11. All of the populations of different species that live and interact in an area Click for Term

12. Community All of the populations of different species that live and interact in an area Click for Term

13. A community of organisms and their nonliving environment Click for Term

14. Ecosystem A community of organisms and their nonliving environment Click for Term

15. The part of the Earth where life exists Click for Term

16. Biosphere The part of the Earth where life exists Click for Term

17. A consumer that eats plants Click for Term

18. Herbivore A consumer that eats plants Click for Term

19. A consumer that eats animals Click for Term

20. Carnivore A consumer that eats animals Click for Term

21. A consumer that eats a variety of organisms Click for Term

22. Omnivore A consumer that eats a variety of organisms Click for Term

23. An animal that feeds on the bodies of dead animals Click for Term

24. Scavenger An animal that feeds on the bodies of dead animals Click for Term

25. A diagram that represents how energy in food molecules flows from one organism to the next Click for Term

26. Food Chain A diagram that represents how energy in food molecules flows from one organism to the next Click for Term

27. A complex diagram representing the many pathways in a real ecosystem Click for Term

28. Food web A complex diagram representing the many pathways in a real ecosystem Click for Term

29. A diagram shaped like a triangle showing the loss of energy at each level of the food chain Click for Term

30. Energy pyramid A diagram shaped like a triangle showing the loss of energy at each level of the food chain Click for Term

31. The environment where an organism lives Click for Term

32. Habitat The environment where an organism lives Click for Term

33. An organism’s way a life and its relationship with its abiotic and biotic environment Click for Term

34. Niche An organism’s way a life and its relationship with its abiotic and biotic environment Click for Term

35. The largest population that a given environment can support over a long period of time Click for Term

36. Carrying capacity The largest population that a given environment can support over a long period of time Click for Term

37. An organism that is eaten by another organism Click for Term

38. Prey An organism that is eaten by another organism Click for Term

39. An organism that eats other organisms Click for Term

40. Predator An organism that eats other organisms Click for Term

41. A close, long-term association between two or more species Click for Term

42. Symbiosis A close, long-term association between two or more species Click for Term

43. A symbiotic relationship in which both organisms benefit Click for Term

44. Mutualism A symbiotic relationship in which both organisms benefit Click for Term

45. A symbiotic relationship in which one organism benefits and the other is unaffected Click for Term

46. Commensalism A symbiotic relationship in which one organism benefits and the other is unaffected Click for Term

47. A symbiotic association in which one organism benefits while the other is harmed Click for Term

48. Parasitism A symbiotic association in which one organism benefits while the other is harmed Click for Term

49. Long-term changes that take places in two species because of their close interactions with one another Click for Term

50. Coevolution Long-term changes that take places in two species because of their close interactions with one another Click for Term