1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Parts of an EcosystemRelation-shipsNutritionChanges in an EcosystemEnergy

2. Any organism that performs photosynthesis

3. Green Plants (or autotrophs or producers)

4. Any organism that must obtain food and eat to obtain nutrients.

5. Consumer

6. Any organism that causes dead organisms to decay, recycling nutrients back into the soil.

7. Decomposers (or saprophytes)

8. Term meaning “Organic material” that is present in an ecosystem. This type of factor is either an organism (dead or alive), or some product of an organism (like feces or tree sap).

9. Biotic Factor

10. Three examples of Abiotic Factors that could be found in an ecosystem.

11. Water, Carbon Dioxide, Oxygen, Temperature, Terrain, etc.

12. Animal that hunts for its food.

13. Predator

14. Animal that is hunted and eaten by another animal.

15. Prey

16. Type of symbiosis where one organism benefits by harming another organism (tapeworms, lice, etc)

17. Parasitism

18. Type of symbiosis where both organisms benefit from their close interaction.

19. Mutualism

20. The type of symbiosis where one organism benefits from a close interaction and the other organism is unaffected.

21. Commensalism

22. What do “Producers” produce?

23. Glucose (food)

24. Primary consumers in a food chain must always eat what kind of food?

25. Green Plants

26. Term used to describe animals that eat both plants and other animals

27. Omnivore

28. The term used to describe animals that eat producers.

29. Herbivores

30. Term used to describe a complicated pattern of overlapping food chains.

31. Food web

32. An organism’s role in the ecosystem

33. Niche

34. Process of change that occurs in an ecosystem as new plant and animal life enter

35. Succession

36. Term used to describe a stable ecosystem that has completed succession

37. Climax Community

38. Term used to describe a foreign species that enters a new ecosystem and has little competition

39. Alien or Exotic Species

40. Failure of a species to adapt to a changing ecosystem will result in the ___________ of that species

41. Extinction

42. All of the energy that is present in an ecosystem comes from this source

43. Sun

44. Type of organism that can transform light energy into chemical energy

45. Green Plants

46. Percentage of calories lost at each step up on the food chain.

47. 90% (10% is passed on)

48. How energy is lost as it is transferred to the next level of the food chain.

49. Metabolism of the organism that is eaten and through heat

50. These two types of organisms must be present in order for an ecosystem to be self-sustaining.

51. Producers and Decomposers