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Class 12 Biology Chapter 14 Ecosystem Quiz 3 (60 MCQs)

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1. Which shows ecological succession?
2. Hubungan antara dua jenis makhluk hidup yang saling memangsa disebut .....
3. Which of the following BEST describes the flow of energy through a food chain?
4. Biotic Elements need ..... many things to survive.
5. What evidence do we have that Australia was part of the supercontinent Gondwana?
6. Which of the following is NOT a type of adaptation?
7. Which species would be most affected by the overfishing of Alaskan salmon?
8. What is the term used to describe the the place an organism lives?
9. The variety and variability of habitats, communities, and ecological process in the biosphere is
10. Study of how living things relate to each other and their environment
11. A living person, animal, or plant.
12. Organisms only hold on to (a) percent of the energy they ingest.
13. Mistletoe extracts water and nutrients from the spruce tree to the tree's detriment (harm).
14. What is the definition of Biodiversity
15. What are keystone species?
16. Who introduced the term Natural Selection?
17. Animals and plants cannot directly use all of the nitrogen found in our atmosphere.
18. What states that no two species can occupy exactly the same niche in exactly the same habitat at the same time
19. An example of a biotic factor in an ecosystem would be:
20. Limiting factors:
21. What role do enzymes play in biochemical reactions?
22. Which of the following is an example of a cultural ecosystem service?
23. True or False:A non-living thing is anything that doesn't grow and reproduce in such as rocks, soil, air, or water.
24. What are all members of one kind of organism that live in a particular area?
25. Food webs model the relationships among species that live in the same environment. Which of thefollowing best illustrates a producer-decomposer relationship in an ecosystem?
26. Which one of these trees are found in the cool and rainy regions?
27. What is one biotic thing that could limit the population size of the primary consumer?
28. Which catastrophic event will most likely have the effect of returning an ecosystem to primary succession?
29. What two parts of the classification system are used for the naming of organisms?
30. Which body system brings oxygen into the body so it can be delivered to cells to use for production of ATP?
31. What is the Malthus model primarily concerned with?
32. Scientists are studying cellular respiration in a jungle ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the jungle carry out cellular respiration?
33. An organism's place on a food chain is also called its
34. Food flows along a food chain from consumers to producers to decomposers.
35. What cell part decides what gets in and out of the cell?
36. A wildfire burns a region of a healthy grasslands ecosystem. Which climax community will MOST LIKELY arrive in the burned region due to ecological succession?
37. What is the significance of studying past environments and extinction events?
38. One of six major types of ecosystems is called:
39. Which of the following is capable of making its own food from sunlight and is the foundation of all food chains?
40. Which is not essential in a viable mesocosm?
41. What are tiny organisms that float near the surface of the water?
42. Which of the following is NOT an autotroph?
43. Which vital element for life participates in the carbon, nitrogen, and phosphorous cycles?
44. When does exponential growth occur?
45. How does biotechnology impact the environment?
46. The seasons, which influence temperature and the availability of water and light on land, are due to:
47. A relationship where one organism benefits and one organism is harmed is called .....
48. Symbiotic mutualism can be seen on
49. What is the ultimate source of energy in any food chain or web?
50. What is the best explanation for an energy pyramid?
51. Relationship between organisms in which both organisms benefit
52. How is a food web different from a food chain?
53. The disappearance of grasshoppers wouldhurt frogs more than snakes because they are the ..... source of food for the .....
54. Frogs lay ~4000 eggs at a time. Based on this frogs would be classified as-
55. Starfish are probably the most important predator in the shallow ecosystem because they eat basically anything that they can come across. Their feeding activities control the whole ecosystem. This is an example of the starfish .....
56. Which of the following is a result of ecological succession?
57. Which Biome will be the hottest
58. The actual place an organism lives is its
59. When organisms of the same species interact over things such as mates it is described as:
60. In an ecosystem, a mouse eats grass seeds and a snake eats the mouse. Which of the following is correct.
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