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Ecology Quiz 35 (60 MCQs)

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1. A bird building their nest in a tree.
2. A living organism that puts materials from dead plants and animals back to the soil is called a ..... ?
3. Which of the following is not a cause of eutrophication.
4. Biomes are usually named from:
5. He was one of the most eminent ecologists of the 20th century and was key to the discipline's professionalization.
6. Ecology is the study of the ..... between plants and animals.
7. A living thing (one thing) that carry out life processes independently.
8. Why are plants called producers?
9. Consumers that have a varying diet
10. The role of an organism in an ecosystem.
11. In an ecosystem, when the population of rabbits increases the population of wolves will?
12. Why are heterotrophs named that way?
13. The place where an animal or a plant lives is called .....
14. A wetland food chain is made up of plankton, shrimp, fish, and dolphins. Which of the following is the original source of energy for all of the organisms in the food chain?
15. Which pyramids of numbers might have fewer producers than primary consumers?
16. Which one of the following is NOT a characteristic of a living thing:
17. What happens when organisms die and decay?
18. Orchids grow on trees to capture more sunlight, the tree is not harmed
19. Which of the following describes a native population where there has been a decrease in the availability of food?
20. Competition for food is a limiting factor that can cause a decrease in the growth of a population. The growth of which type of population will most strongly be affected by this limiting factor?
21. Which of the following is commensalism?
22. An area that is saturated with or covered by water for at least one season of the year is a(n)
23. What is not a factor of the physical environment?
24. An organism that eats both plants and other animals is also known as .....
25. If a secondary consumer receives 50, 000 kJ of energy from ingesting the producer, the producer received at least ..... kJ of energy from the sun
26. Plants growing under shade are known as
27. Which list only contains abiotic conditions that might be found in a pond ecosystem
28. Which describes the possible flow of energy in an ecosystem?
29. The organism that a parasite infects
30. These type of consumers are important for the cycle matter because they feed by chemically breaking down organic matter, which helps molecules return to the soil and contribute to the cycle
31. All of the nonliving things in an ecosystem are called
32. How is the majority of energy within an ecosystem lost?
33. Plankton that are more animal in nature are called what?
34. Which of the following is not an interaction organisms have with each other?
35. Food webs are models that show:
36. What do the arrows in a food chain represent?
37. The job of decomposers in an ecosystem is to
38. The arrows in a food chain or web represent .....
39. Organisms that feed on plants and animals
40. Which biome is hot and dry in summer but cool and moist in winter with a moderate amount of precipitation?
41. How can abiotic factors change in an ecosystem?
42. The source of all energy in for an ecosystem
43. In the carbon cycle, what is one way carbon is released into the atmosphere?
44. Which event is the best example of competition between species in a pond?
45. Which organisms may be chemotrophs? Pick all that apply.
46. The clownfish helping anemone catch other fish and the sea anemone protecting it.
47. In terms of carbon and the atmosphere, autotrophs
48. What do decomposers eat?
49. What happens when different species try to occupy the same niche?
50. Which organisms are necessary for the recycling of nitrogen?
51. Cutting down or destroying forests is called .....
52. What equipment is used to estimate the popultion size of plants in an ecosystem?
53. What is biodiversity?
54. In eutrophication, what directly causes the death of fish?
55. The number of organisms per acre is an example of:
56. An environment can support only as many organisms as the available energy, minerals, and oxygen will allow. Which term is best described by this statement?
57. An organism that eats other organisms for energy
58. Which one of the following is not a way of reducing negative human effects on ecosystems and maintaining biodiversity?
59. Which ecosystem structure is considered a "living environment" ?
60. Dandelions have light furry seeds that allow them to spread easily.
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