Test your basic knowledge |

Common Core Ecosystem

Subjects : common-core, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Any animal that feeds chiefly on grass and other plants






2. Free-swimming animals that can move throughout the water column






3. The living organisms in an ecosystem






4. The land area that supplies water to a river system






5. A relationship between two organisms in which one organism benefits and the other is unaffected






6. Water that flows over the ground surface rather than soaking into the ground






7. The process by which water changes from liquid form to an atmospheric gas






8. (ecology) a community of organisms where there are several interrelated food chains






9. The process by which water changes from liquid form to an atmospheric gas






10. An animal that feeds on both animal and vegetable substances






11. Any animal that feeds on flesh






12. The falling to earth of any form of water (rain or snow or hail or sleet or mist)






13. Living and nonliving things in an environment - together with their interactions






14. Water that flows over the ground surface rather than soaking into the ground






15. The process by which water changes from liquid form to an atmospheric gas






16. Organisms that live attached to or near the ocean floor






17. An animal that feeds on both animal and vegetable substances






18. An arid region with little or no vegetation






19. The continuous movement of water between Earth's surface and the air - changing from liquid to gas to liquid






20. A close relationship of mutual dependence






21. The branch of biology concerned with the relations between organisms and their environment






22. The cycle in which nitrogen gas is changed into forms of nitrogen that plants can use






23. Transmit information






24. Any nonliving component of an environment






25. Animal hunted or caught for food






26. Tiny - free-floating organisms that occur in aquatic environments






27. A group of organisms of the same species populating a given area






28. Any animal that feeds on refuse and other decaying organic matter






29. The branch of biology concerned with the relations between organisms and their environment






30. A nonrenewable energy resource formed from the remains of organisms that lived long ago; examples include oil - coal - and natural gas






31. Any animal that lives by preying on other animals






32. Animals that hunt and eat other animals






33. Conclude by reasoning






34. Process by which plants use the sun's energy to convert water and carbon dioxide into sugars






35. Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten






36. The process of changing from a gaseous to a liquid or solid state






37. The living organisms in an ecosystem






38. Any animal that feeds on flesh






39. Tiny - free-floating organisms that occur in aquatic environments






40. A group of interdependent organisms inhabiting the same region and interacting with each other






41. Dense forest that receives high amounts of rain each year






42. Process by which plants use the sun's energy to convert water and carbon dioxide into sugars






43. Free-swimming animals that can move throughout the water column






44. Animal hunted or caught for food






45. A close relationship of mutual dependence






46. The movement of carbon from the nonliving environment into living things and back






47. Symbiotic relationship in which both species benefit from the relationship






48. The process of changing from a gaseous to a liquid or solid state






49. Animal hunted or caught for food






50. Conclude by reasoning