7th Grade Science Review #5 (Interdependence)

1. The natural environment where an organism lives and grows.
3. An organism that breaks down dead material for nutrients.
8. Species A non-native species that causes harm to the environment.
9. The process by which plants make their own food using sunlight.
13. A close relationship between two species that benefits at least one.
14. A group of individuals of the same species living in the same area.
16. A symbiotic relationship where one benefits and the other is harmed.
17. An organism that gets energy by eating other organisms.
20. A consumer that eats both plants and animals.
21. Level A step in a food chain or food web based on how an organism gets energy.
24. An animal that is hunted and eaten by a predator.
26. A consumer that eats only other animals.
27. Living or once-living parts of an environment.
29. Capacity The maximum number of individuals an environment can support.
31. Pyramid A diagram showing the flow of energy through trophic levels.
32. Cycle The continuous movement of water on, above, and below Earth's surface.
33. A symbiotic relationship where both organisms benefit.
34. An organism that makes its own food through photosynthesis.
38. A trait that helps an organism survive and reproduce in its environment.
39. All the different populations that live together in an area.

2. Nonliving parts of an environment, such as sunlight and water.
4. A community of living and nonliving things interacting in a specific environment.
5. The process by which organisms convert food into energy.
6. A symbiotic relationship where one benefits and the other is unaffected.
7. Stability The ability of an ecosystem to maintain balance over time.
10. The protection and preservation of natural environments and resources.
11. The variety of life in an ecosystem.
12. Web A network of connected food chains in an ecosystem.
15. Cycle The movement of nitrogen through the environment and living things.
18. Selection The process where organisms better suited to their environment survive and reproduce.
19. Chain A sequence showing how energy is transferred from one organism to another.
22. Cycle The flow of carbon through the atmosphere, organisms, and Earth.
23. A state of inactivity that helps animals survive cold conditions.
24. An animal that hunts and eats other animals.
25. Impact The effect of human activities on the natural environment.
28. A consumer that eats only plants.
30. The role or job of an organism in its ecosystem.
35. The struggle between organisms for the same limited resources.
36. Factor Something that controls the growth or survival of a population.
37. The seasonal movement of animals from one place to another.