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Ecology Quiz 56 (60 MCQs)

Quiz Instructions

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1. The scientific study of interactions between organisms and their environments
2. An ecological risk of damming a river could be:
3. Consider the following food chain:Algae > Mayfly > Minnow > TroutIn a polluted ecosystem, which organism would likely have the HIGHEST level of toxic chemicals in its body?
4. Please ..... the light in the classroom
5. A series of events that happens over and over again
6. What is the process by which plants get energy from the sun and convert it into oxygen and food for themselves?
7. An organism that makes its own food is NOT called a heterotroph but an .....
8. This type of organism breaks down dead organic material.
9. The place an organism lives is called its
10. Which Disney movie mentions ecosystems
11. Parasitism is a relationship where:
12. Producers such as plants and some bacteria are able to make their own food, so they can also be called .....
13. What is the primary source of energy for all ecosystems?
14. Organisms that feed on both living producers and other consumers.
15. An organism's movement INTO an ecosystem is
16. The burning of fossil fuels has harmed the environment by
17. The term 'biodiversity' is BEST described as
18. What level of organization is it when moles and rabbits dig underground to build home?
19. An organism that needs to eat other organisms to obtain energy is known as a:
20. All of the interacting species within a particular ecosystem
21. Indicate if the organisms below are herbivores, carnivores, or plants.primary producer
22. What is the process in plants that produce food for the plants and oxygen.
23. Sustainability refers to
24. Which one is a biotic factor?
25. The most important reason for decrease in biodiversity is
26. Example of mutualism
27. All animals in an ecosystem depend on ..... for energy.
28. Lions like to eat zebras, giraffes, antelope and hippos. Which animal would create the most competition for food for lions on the African Savanna.
29. If an area has all the wolves that it can support, the wolf population has reached its .....
30. Most of South America would be considered what biome?
31. Don't stay here. Please .....
32. Energy Pyramid:bottom level
33. Living parts of an ecosystem are called
34. Which is more likely to be a density-independent factor?
35. All the organisms living in an area and the non-living features of their environment represent an .....
36. What eats the producers?
37. How does the nitrogen cycle benefit an ecosystem?
38. A tapeworm in an intestinal tract of an animal is an example of
39. A species that has died out is called:
40. Why is some energy not passed on to the next trophic level?
41. When members of a population move away from a given area, it is called
42. What is an example of a carnivore?
43. A single living thing is known as an
44. A diagram that shows the numbers of individual organisms at each trophic level in an ecosystem is called a(n)
45. Activity that decreases the amount of oxygen and increases the amount of carbon dioxide.
46. Two animals, one benefits, the other is harmed or killed
47. It is estimated that humans will cause more than half of the existing species in the world to go extinct in the next ..... years
48. What is the water cycle?
49. Humans influence the nitrogen cycle by:
50. Competition between same species is .....
51. A group of very similar organisms that can mate and reproduce offspring of the same type
52. This biome has lots of pressure, is dark and has many creepy fish and sea creatures .....
53. An organism that uses an outside source of energy like the sun to create energy-rich food molecules.
54. Demographic transition is change from high birthrates and high death rates to
55. Non-point source of pollution
56. A shrimp is warned of danger by a fish and the fish gets a home dug by the shrimp. Which type of symbiotic relationship is this?
57. In the ocean nitrogen is often the limiting nutrient. What does this term mean?
58. Where do all living things exist?
59. All the organisms of the same species living in the same place at the same time are called:
60. Many biotic factors affect individuals in a population. An example of an organism being directly affected by a biotic factor is
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